Maximum number of blocks on cd/dvd

Problem

I want to know the maximum number of blocks I can write to a cd or dvd.

Solution

When available, use the ATIP information retrieved from cdrecord -atip. Otherwise use the size information obtained by isoinfo -d. NOTE: With multiple sessions, isoinfo's `Volume size' indicates the size of the last session, not the size of a whole disc.

Journal

20070519

ATIP - Absolute Time In Pre-groove

Thorough explanation of ATIP

I can do either cdrecord -atip or isoinfo -d.

Issuing isoinfo and cdrecord on a multi-session cd:

$> cdrecord dev=/dev/hdd -atip
Device type    : Removable CD-ROM
Version        : 0
Response Format: 1
Vendor_info    : 'SONY    '
Identification : 'CD-RW  CRX100E  '
Revision       : '1.0j'
Device seems to be: Generic mmc CD-RW.
Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
Driver flags   : MMC SWABAUDIO 
Supported modes: TAO PACKET SAO
  ATIP start of lead out: 335100 (74:30/00)

$> isoinfo -d dev=/dev/hdd
CD-ROM is in ISO 9660 format
System id: LINUX
Volume id: BackupDar
Volume set id: 
Publisher id: 
Data preparer id: 
Application id: MKISOFS ISO 9660/HFS FILESYSTEM BUILDER & CDRECORD CD-R/DVD CREATOR (C) 1993 E.YOUNGDALE (C) 1997 J.PEARSON/J.SCHILLING
Copyright File id: 
Abstract File id: 
Bibliographic File id: 
Volume set size is: 1
Volume set sequence number is: 1
Logical block size is: 2048
Volume size is: 41262
NO Joliet present
Rock Ridge signatures version 1 found

$> cdrecord -msinfo dev=/dev/hdd
246898,296003

Issuing isoinfo and cdrecord on a formatted, empty DVD:

$> isoinfo -d dev=/dev/hdc
CD-ROM is in ISO 9660 format
System id: LINUX
Volume id: BackupDar
Volume set id: 
Publisher id: 
Data preparer id: 
Application id: MKISOFS ISO 9660/HFS FILESYSTEM BUILDER & CDRECORD CD-R/DVD CREATOR (C) 1993 E.YOUNGDALE (C) 1997 J.PEARSON/J.SCHILLING
Copyright File id: 
Abstract File id: 
Bibliographic File id: 
Volume set size is: 1
Volume set sequence number is: 1
Logical block size is: 2048
Volume size is: 2295097
NO Joliet present
Rock Ridge signatures version 1 found

$> cdrecord dev=/dev/hdc -atip
Device type    : Removable CD-ROM
Version        : 0
Response Format: 2
Capabilities   : 
Vendor_info    : 'DVDRW   '
Identification : '16X16           '
Revision       : 'PTS2'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd).
Driver flags   : SWABAUDIO BURNFREE 
Supported modes: PACKET SAO
  ATIP start of lead in:  -150 (00:00/00)
Disk type:    unknown dye (reserved id code)
Manuf. index: -1
Manufacturer: unknown (not in table)

$> cdrecord -msinfo dev=/dev/hdc
0,0

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