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What is the specific purpose of this cpp profile?

I'll start burning some ps2 dvd5 isos and see if this matches with crc after generating an iso from the burned disc. Gonna try with Alcohol 120%, ImgBurn. Any other burning software adviced?

tossEAC wrote:Their is a problem when burning audio cds, your drive will adjust the files slightly to do with the drive offset, meaning when you read in your backup the audio will be slightly shifted by a few bytes, you can correct this, by working out how many bytes your burning drive shifts the audio on a burnt disc. Once you have that amount (x) you can adjust the audio by x but in the opposite direction before you burn, So when you burn and x is applied you get the audio exactly right. Then when you read your backups the audio will no be shifted.

According to DriveDiscOffset, mine has +6. Will it affect dumping or burning or both?

I think that is better starting with dvds for ps2, let's see what i get from those. I really don't want to waste cdrs and dvdrs, but also understanding what is the real problem. ps2 dvds are mode1/2048, so if my drive/support combination generates random errors in the burning process, they should be nearly always detected and corrected comparing to mode2 specs.

Good news for us. Tried burning Grand Theft Auto: San Andreas v2.01 with Alcohol 120%. Here is the result:

https://redump.info/disc/1074/

ORIGINAL IMAGE CHECKED WITH REDUMP DB:

SLES-52541.iso
Sectors 2207136
Size 4520214528
CRC-32 13a51f88

IMAGE DUMPED WITH ALCOHOL 120% FROM DISC BURNED WITH ALCOHOL 120%.

ALCOHOL120.iso
Size 4520214528
CRC-32 13a51f88

Burned it with PlayStation2 profile on Alcohol 120%. No size and data mismatch, so it seems that my drive is working properly at least with dvd5 mode1/2048. Next one is a PS2 dvd9 game.

EDIT

Burned Metal Gear Solid 2: Substance v1.02 with Alcohol 120%. Dumped and still matches.

https://redump.info/disc/364/

SLES-82009.iso CRC-32 0333ed63
ALCOHOL120.iso CRC-32 0333ed63

Next one: PS1 monotrack disc!

Tried burning disc https://redump.info/disc/5595/ Bugs Bunny: Lost in Time from a perfect dump, the result is the same for Alcohol 120% and CloneCD, the burned disc generated images matches both the redump CRC-32, so my problem is not this. I think the problem i have is what TossEAC said above, so the audio shifting gave by drive. I noticed that by mounting disc https://redump.info/disc/1130/ Castlevania: Symphony of the Night for generating a CCD/IMG/SUB to store in my personal HDD. Used Alcohol Virtual Drive to mount cue/bin (1bin with data and audio merged), or cue/bins (1bin for data, 1bin for audio) and i found that the resulting imgs for these two methods are the same, even if i merge with HexWorkshop the two bin tracks. So it seems that Virtual Drive does the same thing a burner does, shifting the audio tracks forwards or backwards. I manually deleted the resulting SLES-00524.img and used old merged CSOTN.bin renamed in SLES-00524.img to store in my hdd.

So is there a simple solution to mount/burn images without shifting audio tracks? I mean: i understand that a burner has its own audio correction offset called x, so to get a 1:1 copy i have to set a proper -(x) offset in burner software. Which burning software supports the setting of a custom offset to neutralize the drive one? Or do I have to manually do this for every track? For Castlevania is not a problem, but many games have high number of audio tracks, i could get mad doing this manually!

Rallye89 wrote:Which burning software supports the setting of a custom offset to neutralize the drive one?

EAC, but it only supports Audio CD discs.

I think i'm understanding how all this works. The pregap on PS1 audio tracks is nearly always 2SS on audio tracks. Assuming that i decided to store my images in CCD/IMG/SUB if i have to do with a monotrack game the resulting img has the same size and the same checksum of redump. In case of multitrack games (assuming that all the games have 1 data track and X audio track each with 2SS pregap -but i read that is not always happening-) the resulting files are:

img > [redumptotalsize]+(2352*75*2*X) with inserted bytes between the tracks zeroed

sub > [redumptotalsize]/2352*96+(96*X) with bytes added in standard subchannel layout

ccd > LBA shifted of 150 sectors each track

However this is really complicated because to verify an image i have to create a custom cuesheet (because imgburn always uses a 00:02:00 pregap for the first audio track, setting 0 as pregap mode and deleting audio pregap from the generated cuesheet's first audio track), and convert cue/bin/wav into ccd/img7sub. The result is a img with the same total size of redump.org database, that could match. Then i have to create another cuesheet with 2SS pregaps and generate a ccd/img/sub that has the above specs for storing in my hdd.

Now this is the answer: if i dump an original ps1 multitrack disc the resulting ccd/img/sub has the same size of redump database or size is the one i said above [redumptotalsize]+(2352*75*2*X)?

If my burner shifts the audio of Y sectors (+6 in my case) the generated image from burned media won't match that of original disc?