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libretro / flycast

Flycast is a multiplatform Sega Dreamcast emulator. NOTE: No longer actively developed, use upstream repo for libretro from now on - https://github.com/flyinghead/flycast
http://reicast.com
GNU General Public License v2.0
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CHDs converted from new Redump set (cue+bin) don't work #711

Closed luke-70it closed 4 years ago

luke-70it commented 4 years ago

CHDs converted from previous Redump set (gdi+bin) work fine. Not sure if it's a Flycast or a chdman issue.

flyinghead commented 4 years ago

Can you post the result of chdman info on the converted CHD?

luke-70it commented 4 years ago

Ciao flyinghead, i paste output for both cue+bin converted CHD and gdi+bin, and content of cue file and gdi file. Please note that bin files are exactly the same.

cue version (not working): chdman - MAME Compressed Hunks of Data (CHD) manager 0.215 (mame0215) Input file: Sonic Adventure (Europe) (En,Ja,Fr,De,Es).chd File Version: 5 Logical size: 1,276,915,968 bytes Hunk Size: 19,584 bytes Total Hunks: 65,202 Unit Size: 2,448 bytes Total Units: 521,616 Compression: cdlz (CD LZMA), cdzl (CD Deflate), cdfl (CD FLAC) CHD size: 918,052,708 bytes Ratio: 71.9% SHA1: 0e2c550493fa92e9d880513ea1e1d9fb5a99ea78 Data SHA1: 1ce5d73f1d281898d67889b1788a3d0cb2894c59 Metadata: Tag='CHT2' Index=0 Length=92 bytes TRACK:1 TYPE:MODE1_RAW SUBTYPE:NONE FRAMES:11361 PREGAP:0 PG Metadata: Tag='CHT2' Index=1 Length=90 bytes TRACK:2 TYPE:AUDIO SUBTYPE:NONE FRAMES:6100 PREGAP:150 PGTYP Metadata: Tag='CHT2' Index=2 Length=93 bytes TRACK:3 TYPE:MODE1_RAW SUBTYPE:NONE FRAMES:504150 PREGAP:0 P

gdi version (working): chdman - MAME Compressed Hunks of Data (CHD) manager 0.215 (mame0215) Input file: G:\ROMS\Sega - Dreamcast\Sonic Adventure (Europe) (En,Ja,Fr,De,Es).chd File Version: 5 Logical size: 1,344,333,888 bytes Hunk Size: 19,584 bytes Total Hunks: 68,645 Unit Size: 2,448 bytes Total Units: 549,156 Compression: cdlz (CD LZMA), cdzl (CD Deflate), cdfl (CD FLAC) CHD size: 918,091,469 bytes Ratio: 68.3% SHA1: 50217f935cd273dc31c31137ca7844f84c61d955 Data SHA1: c30498011683816e8a4e0557dea587c348d79890 Metadata: Tag='CHGD' Index=0 Length=98 bytes TRACK:1 TYPE:MODE1_RAW SUBTYPE:NONE FRAMES:11361 PAD:0 PREGA Metadata: Tag='CHGD' Index=1 Length=98 bytes TRACK:2 TYPE:AUDIO SUBTYPE:NONE FRAMES:33639 PAD:27539 PREGA Metadata: Tag='CHGD' Index=2 Length=99 bytes TRACK:3 TYPE:MODE1_RAW SUBTYPE:NONE FRAMES:504150 PAD:0 PREG

Here is cue content: REM SINGLE-DENSITY AREA FILE "Sonic Adventure (Europe) (En,Ja,Fr,De,Es) (Track 1).bin" BINARY TRACK 01 MODE1/2352 INDEX 01 00:00:00 FILE "Sonic Adventure (Europe) (En,Ja,Fr,De,Es) (Track 2).bin" BINARY TRACK 02 AUDIO INDEX 00 00:00:00 INDEX 01 00:02:00 REM HIGH-DENSITY AREA FILE "Sonic Adventure (Europe) (En,Ja,Fr,De,Es) (Track 3).bin" BINARY TRACK 03 MODE1/2352 INDEX 01 00:00:00

And here is the gdi content: 3 1 0 4 2352 "Sonic Adventure (Europe) (En,Ja,Fr,De,Es) (Track 1).bin" 0 2 11361 0 2352 "Sonic Adventure (Europe) (En,Ja,Fr,De,Es) (Track 2).bin" 0 3 45000 4 2352 "Sonic Adventure (Europe) (En,Ja,Fr,De,Es) (Track 3).bin" 0

Thank you very much!

flyinghead commented 4 years ago

I might be mistaken but I don't think chdman can convert from cue-gdrom to chd. A GD-ROM has exactly 549,156 sectors, as shown in the gdi-chd:

Total Units: 549,156

whereas the cue-chd shows:

Total Units: 521,616

Also the second track (audio) is much shorter on the CUE version (6100 sectors vs. 33639)

luke-70it commented 4 years ago

You are right! I opened an issue on mame github (#5866), but it seems that mamedev team doesn't plan to support gdrom conversion to chd from cue+bin format.