Recreating 1:1 PSX physical CD using Redump image & LibCrypt info
Posted: Wed Sep 08, 2010 11:57 pm
Ello,
I have a few games with LibCrypt protection; https://redump.info/disc/1177 for example..
I know that CloneCD captures the needed data (presumably subchannel data?) as I have made a 'perfect' (at least LibCrypt-wise) working copy of this particular original with CloneCD before. Doing a burn of the Redump image has the game freezing at arbitrary points (presumably LibCrypt doing it's nasty work).
So really what I'd like to know is; in the unlikely chance that both the original and the CloneCD copy are ever damaged beyond repair, is it possible to recreate a 1:1 physical copy using the Redump image and the LibCrypt information in the Redump database? I realise there are 'de-LibCrypt' patches for this, however that is obviously not 1:1 and very 'non-Redump' in spirit.
Cheers
Edit: And after reading https://redump.info/guide/libcrypt/, it seems I mostly have my answer; LibCrypt data is stored in Redump's SBI files. So the next question is; How's the work going on the new image format?
OR (and I might take a look at this when I get home); how different is a CloneCD SUB and a Redump SBI? Perhaps a conversion tool would be simpler than implementing a new image format?
Edit2: Topic with some good info about SBI's and a (hopefully) functional SBI2SUB tool; /viewtopic.php?t=2533 … n-the-dat/ (this themabus fellow seems like a borderline genius
)
I have a few games with LibCrypt protection; https://redump.info/disc/1177 for example..
I know that CloneCD captures the needed data (presumably subchannel data?) as I have made a 'perfect' (at least LibCrypt-wise) working copy of this particular original with CloneCD before. Doing a burn of the Redump image has the game freezing at arbitrary points (presumably LibCrypt doing it's nasty work).
So really what I'd like to know is; in the unlikely chance that both the original and the CloneCD copy are ever damaged beyond repair, is it possible to recreate a 1:1 physical copy using the Redump image and the LibCrypt information in the Redump database? I realise there are 'de-LibCrypt' patches for this, however that is obviously not 1:1 and very 'non-Redump' in spirit.
Cheers
Edit: And after reading https://redump.info/guide/libcrypt/, it seems I mostly have my answer; LibCrypt data is stored in Redump's SBI files. So the next question is; How's the work going on the new image format?
OR (and I might take a look at this when I get home); how different is a CloneCD SUB and a Redump SBI? Perhaps a conversion tool would be simpler than implementing a new image format?
Edit2: Topic with some good info about SBI's and a (hopefully) functional SBI2SUB tool; /viewtopic.php?t=2533 … n-the-dat/ (this themabus fellow seems like a borderline genius
)