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[Problem] Redumper DVD Layerbreak Support #544

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opened 2026-01-29 16:18:15 +00:00 by claunia · 3 comments
claunia commented 2026-01-29 16:18:15 +00:00
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Originally created by @sunkhaskasis on GitHub (Jun 10, 2023).

Originally assigned to: @mnadareski on GitHub.

God of War PS2 layerbreak example:

redumper v2023.06.09 build_166 [Jun  9 2023, 22:34:12]

command line: J:\redumper-2023.06.09_build166-win64\redumper-2023.06.09_build166-win64\bin\redumper.exe

*** COMMAND: cd
drive path: G:
drive: ATAPI - iHAS122 E (revision level: 2L02, vendor specific: 2013/09/11 10:22)
drive configuration: GENERIC (read offset: +6, C2 shift: 0, pre-gap start: +0, read method: BE, sector order: DATA_C2_SUB)
image path: .
image name: dump_230610_225247_G

disc structure:
  layer 0 { embossed }
    data { LBA: 196608 .. 2098736, length: 1902128, hLBA: 0x00030000 .. 0x00200630 }
    book type: DVD-ROM
    part version: 1
    disc size: 120mm
    maximum rate: 10.08 mbps
    layers count: 2
    track path: parallel
    linear density: 0.293 um/bit
    track density: 0.74 um/track
    BCA: no
  layer 1 { embossed }
    data { LBA: 196608 .. 2209824, length: 2013216, hLBA: 0x00030000 .. 0x0021B820 }
    book type: DVD-ROM
    part version: 1
    disc size: 120mm
    maximum rate: 10.08 mbps
    layers count: 2
    track path: parallel
    linear density: 0.293 um/bit
    track density: 0.74 um/track
    BCA: no

operation started
                                                      

operation complete (time: 716s)

media errors: 
  SCSI: 32

drive path: G:
drive: ATAPI - iHAS122 E (revision level: 2L02, vendor specific: 2013/09/11 10:22)
drive configuration: GENERIC (read offset: +6, C2 shift: 0, pre-gap start: +0, read method: BE, sector order: DATA_C2_SUB)
image path: .
image name: dump_230610_225247_G
operation started
                                                     

operation complete (time: 557s)

media errors: 
  SCSI: 0

dat:
<rom name="dump_230610_225247_G.iso" size="8018624512" crc="a567869c" md5="6b8b8dd72f50b7264f7418b641591c11" sha1="594611974693f011e38d42cb78cbdd0762e9e2f8" />
Originally created by @sunkhaskasis on GitHub (Jun 10, 2023). Originally assigned to: @mnadareski on GitHub. God of War PS2 layerbreak example: ```=== 2023-06-10 22:52:47 ======================================================== redumper v2023.06.09 build_166 [Jun 9 2023, 22:34:12] command line: J:\redumper-2023.06.09_build166-win64\redumper-2023.06.09_build166-win64\bin\redumper.exe *** COMMAND: cd drive path: G: drive: ATAPI - iHAS122 E (revision level: 2L02, vendor specific: 2013/09/11 10:22) drive configuration: GENERIC (read offset: +6, C2 shift: 0, pre-gap start: +0, read method: BE, sector order: DATA_C2_SUB) image path: . image name: dump_230610_225247_G disc structure: layer 0 { embossed } data { LBA: 196608 .. 2098736, length: 1902128, hLBA: 0x00030000 .. 0x00200630 } book type: DVD-ROM part version: 1 disc size: 120mm maximum rate: 10.08 mbps layers count: 2 track path: parallel linear density: 0.293 um/bit track density: 0.74 um/track BCA: no layer 1 { embossed } data { LBA: 196608 .. 2209824, length: 2013216, hLBA: 0x00030000 .. 0x0021B820 } book type: DVD-ROM part version: 1 disc size: 120mm maximum rate: 10.08 mbps layers count: 2 track path: parallel linear density: 0.293 um/bit track density: 0.74 um/track BCA: no operation started operation complete (time: 716s) media errors: SCSI: 32 drive path: G: drive: ATAPI - iHAS122 E (revision level: 2L02, vendor specific: 2013/09/11 10:22) drive configuration: GENERIC (read offset: +6, C2 shift: 0, pre-gap start: +0, read method: BE, sector order: DATA_C2_SUB) image path: . image name: dump_230610_225247_G operation started operation complete (time: 557s) media errors: SCSI: 0 dat: <rom name="dump_230610_225247_G.iso" size="8018624512" crc="a567869c" md5="6b8b8dd72f50b7264f7418b641591c11" sha1="594611974693f011e38d42cb78cbdd0762e9e2f8" /> ```
claunia added the bug label 2026-01-29 16:18:15 +00:00
claunia commented 2026-01-29 16:18:16 +00:00
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@mnadareski commented on GitHub (Jun 10, 2023):

Line format can be found here: https://github.com/superg/redumper/blob/main/dump_dvd.ixx#L144

The length field of the data for layer 0 is what we care about. If we see layers count: 1 at any point, we know that it's single layer.

@mnadareski commented on GitHub (Jun 10, 2023): Line format can be found here: https://github.com/superg/redumper/blob/main/dump_dvd.ixx#L144 The `length` field of the `data` for `layer 0` is what we care about. If we see `layers count: 1` at any point, we know that it's single layer.
claunia commented 2026-01-29 16:18:17 +00:00
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@mnadareski commented on GitHub (Jun 10, 2023):

Should be fixed by 08b4e8d602

@mnadareski commented on GitHub (Jun 10, 2023): Should be fixed by https://github.com/SabreTools/MPF/commit/08b4e8d60241d76e10057786f75bcf257518be60
claunia commented 2026-01-29 16:18:17 +00:00
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@mnadareski commented on GitHub (Jun 11, 2023):

Further fixed by fd102cb56b

@mnadareski commented on GitHub (Jun 11, 2023): Further fixed by https://github.com/SabreTools/MPF/commit/fd102cb56b6e2a39a4267ce0bd6057b8a6a1ae33
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Reference: SabreTools/MPF#544
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