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(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) 



(19) World Intellectual Property 
Organization 

International Bureau 

(43) International Publication Date 
18 November 2004 (18.11.2004) 




PCT 



IIM 

(10) International Publication Number 

WO 2004/100156 Al 



(51) International Patent Classification 7 : Gl IB 20/10 (81) Designated States (unless otherwise indicated, for every 



(21) International Application Number: 

PCT/KR2004/001058 



(22) International Filing Date: 

(25) Filing Language: 

(26) Publication Language: 



7 May 2004 (07.05.2004) 
English 
English 



(30) Priority Data: 

60/469,006 
10-2003-0031958 



9 May 2003 (09.05.2003) US 
20 May 2003 (20.05.2003) KR 



(71) Applicant (for all designated States except US): LG 
ELECTRONICS INC. [KR/KR]; 20, Yoido-dong, 
Youngdungpo-gu, Seoul 150-721 (KR). 

(72) Inventor; and 

(75) Inventor/Applicant (for US only): PARK, Yong Cheol 

[KR/KR]; 215-204, Jugong APT., Wonmun-dong, Gwa- 
chon-si, Gyeonggi-do 421 -1 AO (KR). 

(74) Agents: BAHNG, Hae Cheol et al.; Kims International 
Patent & Law Office, 15th Floor Yosam-building,, 648-23, 
Yeoksam-dong, Kangnam-gu, Seoul 135-080 (KR). 



kind of national protection available): AE, AG, AL, AM, 
AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, 
CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, 
GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, 
KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, 
MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, 
PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, 
TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, 
ZW. 

(84) Designated States (unless otherwise indicated, for every 
kind of regional protection available): ARIPO (BW, Gil, 
GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, 
ZW), Eurasian (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), 
European (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, 
FR, GB, GR, HU, IE, IT, LU, MC, NL, PL, PT, RO, SE, SI, 
SK, TR), OAP1 (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, 
GW, ML, MR, NE, SN, TD, TG). 

Published: 

— with international search report 

For two-letter codes and other abbreviations, refer to the "Guid- 
ance Notes on Codes and Abbreviations" appearing at the begin- 
ning of each regular issue of the PCT Gazette. 



(54) Title: RECORDING MEDIUM HAVING DATA STRUCTURE FOR MANAGING AT LEAST A DATA AREA OF THE 
RECORDING MEDIUM AND RECORDING AND REPRODUCING METHODS AND APPARATUSES 



Track Track Track 
#1 #2 #3 



Track 



Track 




LRA1 LRA2 LRA3 LRA4 LRA5 

*LRA : Last Recorded Address 



(57) Abstract: The data structure on the recording medium includes a temporary defect management area storing a data block. The 
data block includes sequential recording information and a temporary definition structure. The sequential recording information 
provides information on continuous recording areas in the data area of the recording medium. The temporary definition structure 
includes at least one pointer to information in the temporary defect management area. 



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RECORDING MEDIUM HAVING DATA STRUCTURE FOR 
MANAGING AT LEAST A DATA AREA OF THE RECORDING 
MEDIUM AND RECORDING AND REPRODUCING METHODS 

AND APPARATUSES 

5 Technical Field 

The present invention relates to a recording medium having a data structure for 
managing at least a data area of the recording medium as well as methods and 
apparatuses for reproduction and recording. 

10 Background Art 

The standardization of new high-density read only and rewritable optical disks 
capable of recording large amounts of data has been progressing rapidly and new 
optical disk related products are expected to be commercially available in the near 
future. For example, the blu-ray disc (BD), which belongs to the next-generation 

15 HD-DVD technology, is the next-generation optical recording solution that can 
strikingly surpass the data recording capability of existing DVDs. 
Recording on and reading from a BD uses a celadon laser having a wavelength of 
405nm, which is much denser than a red laser having a wavelength of 650nm used 
with existing DVDs. Thus, a greater amount of data may be stored on BD than on 

20 existing DVDs. 

While at least one standard related to the BD (Blu-ray Disc) has been developed, 
such as BD-RE (BD Rewritable disc), many other standards such as BD-WO (BD 
Write Once disc) are still in development. Standards such as BD-RE provide a data 
structure for managing defects in the data area of the recording medium. However, 
25 the BD-WO, because of its write-once nature, presents challenges not faced by 
existing BD standards such as BD-RE, and an effective data structure and method of 
managing defects is still under development for the BD-WO standard. 



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Disclosure of Invention 

The recording medium according to the present invention includes a data structure 
for managing at least a data area of the recording medium. 

In one exemplary embodiment, a temporary defect management area of the 
5 recording medium stores a first data block that includes sequential recording 
information and a temporary definition structure. The sequential recording 
information provides information on continuous recording areas in the data area of 
the recording medium. The temporary definition structure includes at least one 
pointer to information in the temporary defect management area. 

10 In one embodiment, the sequential recording information includes a header, 
information entries for each continuous recording area and a terminator. The header 
identifies the sequential recording information as sequential recording information. 
Each information entry provides information on an associated continuous recording 
area, and the terminator indicates an end of the sequential recording information. 

15 In one embodiment, the header information indicates a number of the continuous 
recording areas and a number of the continuous recording areas open for recording. 
In an example embodiment, each information entry indicates a status of the 
associated continuous recording area, indicates a starting physical sector number of 
the associated continuous recording area, and indicates a last recording address of 

20 the associated continuous recording area. 

The present invention further provides apparatuses and methods for recording and 
reproducing the data structure according to the present invention. 

Brief Description of Drawings 

25 The above features and other advantages of the present invention will be more 
clearly understood from the following detailed description taken in conjunction with 
the accompanying drawings, in which: 



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Fig. 1 illustrates the different kinds of basic tracks of a write-once optical disc 
according to an example embodiment of the present invention; 

Figs. 2A and 2B illustrate a data structure of the write-once optical disc, and more 
specifically, the temporary disc management information according to an 
5 embodiment of the present invention; 

Fig. 3 illustrates a comparison of the disc management information of a 
conventional rewritable optical disc to the disc management information of the 
present invention; 

Figs. 4 and 5 illustrate two example embodiments of a method of updating the track 
10 information according to the present invention; and 

Fig. 6 illustrates an embodiment of a recording and reproducing apparatus according 
to the present invention. 

Best Mode for Carrying Out the Invention 

15 In order that the invention may be fully understood, exemplary embodiments thereof 
will now be described with reference to the accompanying drawings. For 
convenience, a write-once optical Blu-ray disc will be used as an example of a 
write-once recording medium in the exemplary embodiments. 

20 Kinds of Tracks and Data Structure of the Recording Medium 

Referring to Figs. 1, 2A-2B and 3, the kinds of tracks and physical structure of the 
disc according to an example embodiment of the of the present invention will be 
described. A continuous recording area in which data is sequentially recorded will 
be referred to as a track in this disclosure. Fig. 1 illustrates the different kinds of 

25 basic tracks of a write-once optical disc according to an example embodiment of the 
present invention. More specifically, Fig. 1 illustrates a plurality of continuous 
recording areas or tracks having different status assuming use of the write-once disc 



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over a period of time. As shown, tracks 1 and 2 correspond to open tracks that while 
storing data in a first area thereof, each have a later area on which additional 
recording is possible. The tracks 3 and 4 correspond to complete or closed tracks 
that are completely filled (track 4) or are closed for further recording (track 3). As 
5 shown by track 3, when a track having an unrecorded area is closed such that no 
further recording in the track is permitted, the unrecorded area is padded with zeros 
(shown as a hatched portion in Fig. 1) and changed to be a complete track. Track 3 
is different from track 4 in that point. 

Track 5 provides an example of the last track that includes area on which 
10 additional recording is possible. This track is called an intermediate track. 

Accordingly, there are three kinds of tracks — open, closed and intermediate. 

Each of the tracks has a last recorded address (LRA) regardless of the kind of the 

track. The LRA is the last address at which actual data was recorded in the track. 

Accordingly, with respect to track 3, the position (or address) before the track 3 was 
15 padded with zeros is the LRA for track 3 (LRA3). More specifically, assuming the 

unit for recording data on the optical disc is a cluster, and there are 32 sectors in one 

cluster, if less than the 32 sectors have data recorded therein, then the remaining 

sectors are padded with zeros. The last sector address before the padding is the LRA. 

For each of the open and intermediate tracks, but not the closed tracks, a next 
20 writable address (NWA) indicating the next address into which data may be written 

may be determined. The NWA is obtained from the LRA as the next sector address 

following the LRA. 

Figs. 2A and 2B illustrate a data structure of the write-once optical disc, and more 
specifically, temporary disc management information according to an embodiment 
25 of the present invention. The configuration of the write-once optical disc shown in 
Fig. 2A is described in detail in Korea Patent Application no. 2003-15634. 



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As shown, the write-once optical disc in this example is a single layer disc that has 
one recording layer. The disc includes spare areas (ISA0/ISA1) for recording data 
the could not be recorded in the main data area because of defects in the main data 
area (e.g., physical defects). Information for managing the replacement of defect 
5 portions of the data area with portions of the spare area is recorded in a temporary 
defect management area or areas (TDMA). 

In general, a rewritable, as opposed to a write-once, optical disc has a limited defect 
management area (DMA) because data can be written and erased from the DMA 
repeatedly. A write-once optical disc needs a larger amount of to manage defects 
10 since data can be written only once and not erased. Accordingly, the TDMA is used 
for recording the defect management information as this information changes during 
use of the optical disc. Once the disc is complete, the last version of the defect 
management information is copied from the TDMA to a DMA on the write-once 
optical disc. 

15 Referring to Fig. 2A, the TDMA includes TDMA1 allocated to a lead-in area having 
a fixed size and TDMA2 allocated to spare area OS AO. The TDMA2 has a size 
interworking with the size of the spare area. For example, the size of the spare area 
OSAO is N*256 cluster, of which the TDMA2 forms P clusters. The number of 
clusters P may be determined according to the expression P = (N * 256)/4). In each 

20 TDMA, temporary defect management information in the form of a temporary 
defect list (TDFL), a temporary disc definition structure (TDDS), and disc use status 
information may be recorded. 

As discussed above, when a defect area exists in the data area, a spare area 
(ISA0/OSA0) is substituted for the defect area. The TDFL provides information to 
25 manage this process in the form of a list. For example, the list indicates the defect 
area and the spare area replacing the defect area. According to one embodiment of 
the present invention, the size of the TDFL, varies from 1 to 4 clusters depending on 



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the amount of information in the TDFL. By contrast, according to one example 
embodiment of the present invention, the amount of space devoted to the TDDS 
remain fixed at one cluster. According to this embodiment, this data block includes 
the TDDS and disc usage status information as discussed in detail below with 
5 respect to Figs 3 and 2B. 

Referring first to Fig. 3, the disc management information of the conventional 
rewritable optical disc will be compared with the contents included in the TDDS of 
the present invention. 

In the case of a rewritable optical disk, the DDS consumes a very small portion of 
10 the disc - about 60 bytes of one cluster (one cluster having 32 sectors). The 
remaining area of the cluster is set by 'zero padding'. However, according to this 
embodiment of the present invention, the remaining area as well as the area (60 
bytes) used in the conventional rewritable optical disk is used as disc management 
information. Accordingly, in the TDDS of the present invention, information 
15 particular to a write-once optical disc as well as DDS as used in the conventional 
rewritable optical disc is recorded sequentially in one sector (2048 bytes). For 
example, the information particular to the write-once optical disc may be position 
information of the latest TDFL. 

As shown in Fig. 2 A and 3, the sequential recording or, more particularly, the track 
20 information according to an embodiment of the present invention is recorded on the 
remaining 31 sectors of one cluster that includes the TDDS. Alternatively, the 
track information may be configured in 31 sectors in the front of TDDS and the 
TDDS may be configured on the last, 32 nd sector. 

Accordingly, the TDDS as used in this disclosure should be construed broadly as 
25 described above and not as a term defined according to one particular standard. 

Data Structure of Track Information on the Recording Medium 



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First, the present invention does not limit the number of the open tracks. 
Accordingly, there may exist a plurality of open tracks and complete tracks. The 
present invention provides a data structure on the recording medium for managing 
this potential in an efficient manner. An embodiment of this track information data 
structure will now be described in detail with respect to Fig. 2B. 
As shown, the sequential recording, or more particularly, the track information 
includes three parts: a header for indicating that the data structure provides track 
information, a track information list providing the track information, and an 
terminator indicating an end of the track information. 

The header is positioned at the front portion of the track information and includes a 
'track information structure identifier' field indicating that information following the 
identifier is track information. The next indicator 'track information format' 
indicates the format of the track information. This is followed by a 'layer number (0 
or 1)' field representing the recording layer to which the track information 
corresponds. While the example thus far has been for a single sided, single recording 
layer write-once optical disc, the optical disc may have multiple recording layers 
and/or be double sided. 

The header further includes a 'total number of tracks' field representing the number 
tracks in the data area of the recording layer to which the track information 
corresponds, and 'total number of open tracks' field representing the number of the 
open tracks in this data area. Before reading the track information list, the total 
track information may be confirmed. 

The track information list is recorded after the header and will be described in 
greater detail below. The track information list terminator represents the end of the 
track information. Accordingly, the track information includes a header, track 
information list and a terminator recorded in series. 



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An example embodiment of the track information list will now be described in more 
detailed. The track information list includes one entry for each track in the 
corresponding data area of the disc. Each entry may be allocated to 5 for example, 8 
bytes. This track information entry includes track status information, a first 
5 address of the corresponding track and the last recorded address information of the 
track. 

The track status information indicates the kind of track - open, closed or 
intermediate, and may be represented by 4 bits as shown in Fig 3B. In this 
embodiment of the present invention, an open track in which additional recording is 

10 possible is indicated by ' 0000b ' as the track status information. An intermediate 
track is indicated by '000 lb' as the track status information, and a complete track, in 
which additional recording is not permitted, is indicated by 6 1000b' as the track 
status information. The track status information is represented as specific bits as 
described above to aid in sorting the track information list entries as described later 

15 in this disclosure. 

In the example of Fig. 2B, the first address information of an entry is a 'start 
physical sector number (PSN) of track' field. This field provides the sector address 
of the first sector forming the track. The last recorded address information in the 
example of Fig. 3B is the LRA of the track. Accordingly, if one entry is read, the 

20 kind of track, the start position and LRA of the track may be determined. 

The track status information in each entry may also include a session start status 
(e.g., one of the bits in the track status information in each entry may be used as the 
session start bit). The session status indicates if the track is the first track or not the 
first track in a session. Here, the clustering of tracks into a group is called a session. 

25 



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Track Information Update Method 
When to update the track information may be a design parameter established 
according to the system or system designer. However, examples of events triggering 
update will be described in detail below. 

5 When a new track is generated or a track is closed, since the track information is 
newly generated, the track information may be updated. When a disc is ejected 
from a driver or the power to the driver is turned off, use of the disc is stopped at 
least temporarily. At these times, the track information is updated. 
Figs. 4 and 5 illustrate two example embodiments of a method of updating the track 

10 information according to the present invention. As shown in Fig. 4, the track 
information in a preceding step and the track information to be updated now are 
separate and recorded separately. In this method, the track information previously 
recorded is included in the current recording such that the track information is 
recorded cumulatively. 

15 More specifically, to record the track information updated at time n + 1, the track 
information recorded at time n and the track information at time n+1 are recorded 
sequentially. In other words, the track information in the preceding track recording 
step is included, but recorded separately from current track information. Similarly 
when updating the track information at time n + 2, the track information recorded at 

20 time n and n+1 is included, but recorded separately. 

The advantage of this embodiment is that the contents of the track information at 
each stage of disc usage is recorded in sequential order. It is easy to confirm the 
usage status of the disc. If only the latest track information is recorded, it would be 
more difficult to access the previous track information and require a longer time to 

25 access this information. 

Fig. 5 illustrates another embodiment of a method of updating the track information 
according to the present invention. The track information previously recorded and 



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the track information to be updated now are included and recorded cumulatively. 
However, prior to recording, the track information list is sorted and recorded in a 
specific order. 

More specifically, to record the track information updated at time n + 1, the track 
information recorded at time n and the track information to be updated now at time 
n+1 are considered as one track information list and sorted. The sorted version of the 
track information is then recorded in a specific order. 

For example, the track information list entries may be sorted by track status (i.e., the 
kind of track). Using the format of the track status information described above with 
respect to Fig. 2B as an example, the entries of the open tracks that have '0000b' as 
track status information come first. Next, entries of the complete tracks that have 
'1000b 5 as the track status information are recorded, and last, the entries of the 
intermediate track that have c 0001b' as track status information are recorded. For 
entries having the same track status information, the entries are sorted by the first 
address information such that the entries having smaller addresses are recorded first. 
Another method is also possible. For example at first the track information list 
entries may be sorted by the first address information such that the entries having 
smaller addresses are recorded first. It should be understood that these are merely 
examples of the sorting that may take place, and that a system designer may adopt 
other basis for sorting that fall within the spirit and scope of the present invention. 
The advantage of this embodiment of the present invention is that information on the 
tracks in a disc are sorted according to their kind so that the information related to a 
kind of track (e.g., open track) may be easily obtained. Also, because the track 
information for each track is recorded in the updating, the track information for the 
data area is easily and quickly accessible. 

The two embodiments described above are complementary to each other. The 
system or user may select and use the method suitable to their environment. 



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Fig. 6 illustrates a schematic diagram of an embodiment of an optical disk recording 
and reproducing apparatus according to the present invention. As shown, an encoder 
9 receives and encodes data (e.g., still image data, audio data, video data, etc.). The 
encoder 9 outputs the encoded data along with coding information and stream 
5 attribute information. A multiplexer 8 multiplexes the encoded data based on the 
coding information and stream attribute information to create, for example, an 
MPEG-2 transport stream. A source packetizer 7 packetizes the transport packets 
from the multiplexer 8 into source packets in accordance with the audio/video 
format of the optical disk. As shown in Fig. 6, the operations of the encoder 9, the 

10 multiplexer 8 and the source packetizer 7 are controlled by a controller 10. The 
controller 10 receives user input on the recording operation, and provides control 
information to encoder 9, multiplexer 8 and the source packetizer 7. For example, 
the controller 10 instructs the encoder 9 on the type of encoding to perform, instructs 
the multiplexer 8 on the transport stream to create, and instructs the source 

15 packetizer 7 on the source packet format. The controller 10 further controls a drive 3 
to record the output from the source packetizer 7 on the optical disk. 
The controller 10 also creates the navigation and management information for 
managing reproduction of the data being recorded on the optical disk. For example, 
the controller 10 controls the drive 3 to record one or more of the data structures of 

20 Figs. 1-3 on the optical disk. 

During reproduction or further recording operations, the controller 10 may control 
the drive 3 to reproduce this data structure. Based on the information contained 
therein, as well as user input received over the user interface (e.g., control buttons on 
the recording and reproducing apparatus or a remote associated with the apparatus), 

25 the controller 10 controls the drive 3 to reproduce and/or record data from/to the 
optical disk as discussed in detail above. 



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Reproduced source packets are received by a source depacketizer 4 and converted 
into a data stream (e.g., an MPEG-2 transport packet stream). A demultiplexer 5 
demultiplexes the data stream into encoded data. A decoder 6 decodes the encoded 
data to produce the original data that was fed to the encoder 9. During reproduction, 
5 the controller 10 controls the operation of the source depacketizer 4, demultiplexer 5 
and decoder 6. The controller 10 receives user input on the reproducing operation, 
and provides control information to decoder 6, demultiplexer 5 and the source 
packetizer 4. For example, the controller 10 instructs the decoder 9 on the type of 
decoding to perform, instructs the demultiplexer 5 on the transport stream to 

10 demultiplex, and instructs the source depacketizer 4 on the source packet format. 

While Fig. 6 has been described as a recording and reproducing apparatus, it will be 
understood that only a recording or only a reproducing apparatus may be provided 
using those portions of Fig. 6 providing the recording or reproducing function. 
Industrial Applicability 

15 The write-once optical disc management data structure and method of recording and 
reproducing this data structure as well as updating the management data provide 
information regarding the use of the recording medium to sequentially store data in 
continuous recording areas (e.g., tracks). This data structure and these methods 
remain applicable for the case where the number of the open tracks, in which 

20 additional recording is possible, is not limited. 

The data structure for and method for managing at least a data area of a high-density 
recording medium in accordance with embodiments of the present invention enables 
an efficient and progressive use of a write-once recording medium such as BD-WO. 
As apparent from the above description, the present invention also provides 

25 apparatuses for recording a data structure on a high density recording medium for 
managing at least a data area of the recording medium. 



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While the invention has been disclosed with respect to a limited number of 
embodiments, those skilled in the art, having the benefit of this disclosure, will 
appreciate numerous modifications and variations there from. For example, while 
described with respect to a Blu-ray Write-Once optical disk in several instances, the 
5 present invention is not limited to this standard of optical disk or to optical disks. It 
is intended that all such modifications and variations fall within the spirit and scope 
of the invention. 



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Claims 

1. A recording medium having a data structure for managing a data area of a 
recording medium, comprising: 

a temporary defect management area storing a first data block, the first data 
block including sequential recording information and a temporary definition 
structure, the sequential recording information providing information on continuous 
recording areas in the data area of the recording medium, the temporary definition 
structure including at least one pointer to information in the temporary defect 
management area. 

2. The recording medium of claim 1, wherein the first data block has a size of at 
least one cluster. 

3. The recording medium of claim 2, wherein one sector of the first data block is 
devoted to the temporary definition structure and at most 3 1 sectors of the first data 
block are devoted to the sequential recording information. 

4. The recording medium of claim 3, wherein a first sector of the sequential 
recording information is located adjacent to the temporary definition structure. 

5. The recording medium of claim 1, wherein the sequential recording information 
includes a header, information entries for each continuous recording area and a 
terminator, the header identifying the sequential recording information as sequential 
recording information, each information entry providing information on an 
associated continuous recording area, and the terminator indicating an end of the 
sequential recording information. 



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6. The recording medium of claim 5, wherein the header information indicates a 
number of the continuous recording areas. 

7. The recording medium of claim 6, wherein the header information indicates a 
number of the continuous recording areas open for recording. 

8. The recording medium of claim 5, wherein the header information indicates a 
number of the continuous recording areas open for recording. 

9. The recording medium of claim 5, wherein each information entry indicates 
whether the associated continuous recording area is a first continuous recording area 
in a group of continuous recording areas. 

10. The recording medium of claim 5, wherein each information entry indicates 
whether the associated continuous recording area is open for recording. 

11. The recording medium of claim 5, wherein each information entry indicates a 
starting physical sector number of the associated continuous recording area. 

12. The recording medium of claim 5, wherein each information entry indicates a 
last recording address of the associated continuous recording area. 

13. The recording medium of claim 5, wherein each information entry indicates a 
status of the associated continuous recording area, indicates a starting physical 
sector number of the associated continuous recording area, and indicates a last 
recording address of the associated continuous recording area. 



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14. The recording medium of claim 13, wherein the status indicates whether the 
associated continuous recording area is a start of a group of continuous recording 
areas. 

15. The recording medium of claim 1, wherein the temporary definition structure 
includes a pointer to a temporary defect list in the temporary defect management 
area, the temporary defect list indicating defects in the data area. 

16. The recording medium of claim 1, wherein the temporary defect management 
area comprises: 

a second data block, the second data block including a later recorded 
sequential recording information as compared to the first data block, the later 
recorded sequential recording information including the sequential recording 
information of the first data block and new sequential recording information. 

17. The recording medium of claim 16, wherein 

the sequential recording information in the first and second data blocks each 
include a header, information entries for each continuous recording area and 
a terminator, the header identifying the sequential recording information as 
sequential recording information, each information entry providing 
information on an associated continuous recording area, and the terminator 
indicating an end of the sequential recording information; and 
the information entries in the sequential recording information in the first and 
second data blocks are sorted by entry into the sequential recording 
information. 

18. The recording medium of claim 16, wherein 



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the sequential recording information in the first and second data blocks each 
include a header, information entries for each continuous recording area and 
a terminator, the header identifying the sequential recording information as 
sequential recording information, each information entry providing 
information on an associated continuous recording area, and the terminator 
indicating an end of the sequential recording information; and 
each information entry in the sequential recording information in the first and 
second data blocks includes a status indicator indicating a status of the 
associated continuous recording area; and 

the information entries in the sequential recording information in the first and 
second data blocks are sorted by status. 

19. A recording medium having a data structure for managing a data area of a 
recording medium, comprising: 

a temporary defect management area storing the sequential recording 
information, the sequential recording information including a header, information 
entries for each continuous recording area in the data area and a terminator, the 
header identifying the sequential recording information as sequential recording 
information, each information entry providing information on an associated 
continuous recording area, and the terminator indicating an end of the sequential 
recording information. 

20. The recording medium of claim 19, wherein the header information indicates a 
number of the continuous recording areas. 

21. The recording medium of claim 20, wherein the header information indicates a 
number of the continuous recording areas open for recording. 



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22. The recording medium of claim 19, wherein the header information indicates a 
number of the continuous recording areas open for recording. 

23. The recording medium of claim 19, wherein each information entry indicates 
whether the associated continuous recording area is a first continuous recording area. 

24. The recording medium of claim 19, wherein each information entry indicates 
whether the associated continuous recording area is open for recording. 

25. The recording medium of claim 19, wherein each information entry indicates a 
starting physical sector number of the associated continuous recording area. 

26. The recording medium of claim 19, wherein each information entry indicates a 
last recording address of the associated continuous recording area. 

27. The recording medium of claim 19, wherein each information entry indicates a 
status of the associated continuous recording area, indicates a starting physical 
sector number of the associated continuous recording area, and indicates a last 
recording address of the associated continuous recording area. 

28. The recording medium of claim 27, wherein the status indicates whether the 
associated continuous recording area is a start of a group of continuous recording 
areas. 

29. A method of recording management data on a recording medium, comprising: 

recording a data block in a temporary defect management area, the data block 



WO 2004/100156 



19 



PCT/KR2004/001058 



including sequential recording information and a temporary definition 
structure, the sequential recording information providing information on 
continuous recording areas in the data area of the recording medium, the 
temporary definition structure including at least one pointer to information in 
5 the temporary defect management area. 

30. A method of reproducing data from a recording medium, comprising: 

reproducing at least a portion of data recorded on the recording medium 
based on a data block recorded in a temporary defect management area of the 
10 recording medium, the data block including sequential recording information 

and a temporary definition structure, the sequential recording information 
providing information on continuous recording areas in the data area of the 
recording medium, the temporary definition structure including at least one 
pointer to information in the temporary defect management area. 

15 

31. An apparatus for recording management data on a recording medium, 
comprising: 

a driver for driving an optical recording device to record data on the 
recording medium; and 
20 a controller for controlling the driver to record a data block in a temporary 

defect management area, the data block including sequential recording 
information and a temporary definition structure, the sequential recording 
information providing information on continuous recording areas in the data 
area of the recording medium, the temporary definition structure including at 
25 least one pointer to information in the temporary defect management area. 



WO 2004/100156 



PCT/KR2004/001058 



1/6 



FIG. 1 



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WO 2004/100156 



PCT/KR2004/001058 



2/6 



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WO 2004/100156 



PCT/KR2004/001058 



3/6 



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WO 2004/100156 



PCT/KR2004/001058 



4/6 



FIG. 3 



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<Re writable Disc> <Write-Once Disc> 



FIG. 4 




WO 2004/100156 



5/6 



PCT/KR2004/001058 



FIG. 5 



TDDS #n 



List of Track Info #n 



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#n+(#n+l)+(#n+2) 



WO 2004/100156 



PCT/KR2004/001058 



6/6 




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INTERNATIONAL SEARCH REPORT 



International application No. 
PCT/KR 2004/001058 



A. CLASSIFICATION OF SUBJECT MATTER 
G11B 20/10 

According to International Patent Classification (IPC) or to both national classification and IPC 

B. FIELDS SEARCHED 



Minimum documentation searched (classification system followed by classification symbols) 

G11B 20/10, 20/12 



Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched 
G06F 12/14 



Electronic data base consulted during the international search (name of data base and, where practicable, search terms used) 

WPI 



C DOCUMENTS CONSIDERED TO BE RELEVANT 



Category* 



Citation of document, with indication, where appropriate, of the relevant passages 



Relevant to claim No. 



US 20021 361 1 8 A1 (TAKAHASHI) 26 September 2002 
(26.09.2002) 



EP 0464811 A (MATSUSHITA) 8 January 1992 (08.01.1992) 



1,19,29,31 



1,19,29,31 



□ Further documents are listed in the continuation of Box C. 



See patent family annex. 



* Special categories of cited documents: 

"A" document defining the general state of the art which is not considered 

to be of particular relevance 
"E" earlier application or patent but published on or after the international 

filing date 

"L" document which may throw doubts o n priority claim(s) or which i s 
cited to establish the publication date of another citation or other 
special reason (as specified) 

"O" document referring to an oral disclosure, use, exhibition or other 
means 

"P" document published prior to the international filing date but later than 
the priority date claimed 



"T" later document published after the international filing date or 
priority date and not in conflict with the application but cited 
to understand the principle or theory underlying the invention 

"X" document of particular relevance; the claimed invention 
cannot be considered novel or cannot be considered to involve 
an inventive step when the document is taken alone 

"Y" document of particular relevance; the claimed invention 
cannot b e c onsidered to involve an i nventive s tep when the 
document is combined with one or more other such 
documents, such combination being obvious to a person 
skilled in the art 

document member of the same patent family 



Date of the actual completion of the international search 

7 July 2004 (07.07.2004) 



Date of mailing of the international search report 

31 August 2004 (31.08.2004) 



Name and mailing address of the ISA/ AT 

Austrian Patent Office 

Dresdner StraBe 87, A-1200 Vienna 

Facsimile No. +43 / 1 / 534 24 / 535 



Authorized officer 



GROSSING G. 



Telephone No. +43 / 1 / 534 24 / 386 



Form PCT/IS A/210 (second sheet) (January 2004) 



INTERNATIONAL SEARCH REPORT 
Information on patent family members 



International application No. 

PCT/KR 2004/001058 



Patent document cited 
in search report 



Publication 
date 



Patent family 
member(s) 



Publication 
date 



EP 


A 


464811 




DE 


T 


69127776T 


1998-03-19 










DE 


D 


69127776D 


1997-11-06 










US 


A 


5270877 


1993-12-14 










EP 


A 


0464811 


1992-01-08 










JP 


A 


4067471 


1992-03-03 


US 


A 


20021361 


2002-09-26 


JP 


A 


2002288937 


2002-10-04 






13 




CN 


A 


13769B4 


2002-10-30 



Form PCT/ISA/2 1 0 (patent family annex (sheet 0)) (January 2004)