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superg / redumper

Low level CD dumper utility
GNU General Public License v3.0
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MS disc: Last audio track cut short, data are partly inaccessible #46

Closed Feathered-Serpent closed 1 year ago

Feathered-Serpent commented 1 year ago

Hey there,

found your program and thought to give it a try on some multi session discs, which can't be dumped with DIC. And obviously also not with redumper. So far only CloneCD was able to dump them.

The first case is a CD where redumper correctly finds the 14 audio tracks in session 1, but cuts short the last audio track from 3:15 down to 1:30 playtime.

Session 2 with some data inside, seemingly incorrectly starts at LBA 211277, whereas on the CloneCD image, it starts at 219182: grafik

The ISO and the Joilet file system are marked as damaged from IsoBuster on the redumper image: grafik

There is no data inside: grafik

Whereas on the CloneCD ISO there is: grafik

I'm not sure, what all I should provide, so I start with the log file from redumper: Original Motion Picture Score.log

Not sure if this would be of any help, but I copied the (german) log from CloneCD when I dumped the CD: POKEMON.log

tjanas commented 1 year ago

You probably need to modify your cuesheet to make the redumper or DIC image parse correctly in isobuster. Does the redumper cuesheet have the following line: REM LEAD-OUT 01:30:00 If so, try removing that.

Feathered-Serpent commented 1 year ago

That indeed lets me extract the last audio track fully and I also can see the files (and extract them) in ISO and Joilet.

Btw. DIC doesn't dump the disc fully, but stops with an error close to the end. https://github.com/saramibreak/DiscImageCreator/issues/70#issuecomment-1003989049

Other question: redumper created a file named "Original Motion Picture Score (Track 00.2)". What is track 00.2? It's not linked in the cue sheet. The file consists nearly only out of 0-bytes.

superg commented 1 year ago

@Feathered-Serpent this is super interesting. From the log I see that there is TOC/subchannel mismatch but in addition to that it looks like there is some offset shifting going on. Will you be able to share the dump files for my investigation?

superg commented 1 year ago

also, 00.2 file is partial lead-in from the 2nd disc session. This file is created only if there is some non zero data there.

superg commented 1 year ago

Ah, wait, so that was IsoBuster problem?

Feathered-Serpent commented 1 year ago

I wouldn't say it's Isobuster problem, because with the cue sheet I cannot open any files when mounting the files with ImgDrive, and also when using ImgBurn to burn the cue disc onto a real disc I get tons of miscompares: grafik

So I'm not sure if the cue should actually been able to be used to make a copy of the disc.

I hope, 7z is not a problem: https://dragonswatch.silentstrider.net/sharing/OWn2quBqP that link expires in a week.

superg commented 1 year ago

I'll check the dump files tonight, thanks for uploading that.

Overall, there is a fundamental issue in how cue sheet (mis)represent multisession information. Redumper creates multisession tags based on redump.org standards. Redump.org standards in turn were designed years ago and that some tags meaning contradict with what was initially meant by IsoBuster developer. There are a lot of details on that in DiscImageCreator issue tracker.

TL;DR, I don't know any way on how can you burn multisession cue. What we do at redump.org, we cannot change our tags at this point because it will dramatically affect our cue sheets.

Feathered-Serpent commented 1 year ago

Ultimately, I do have my backup of the Audio/Enhanced CD made with CloneCD.

Opening such issues was just my thought, that I could try to eventually show problems, which could arrise on other discs as well. In case, there is something, that can be fixed.

So I would leave it up to you, if you follow up with the dump or not :) after your check that is.

Feathered-Serpent commented 1 year ago

Just a little side information: I used an IDE-USB adapter to create the dump, which should have the IS611 chipset. Though I noticed, that this adapter not only didn't see my Plextor 4012TA drive, but also failed to rip discs which I am able with a real IDE setting.

But: I have used redumper on the IDE setting and the dump of this Pokémon CD produces the same log with the same warning messages, so I can probably say, it wasn't the adapters fault this time. The Cactus Shield Discs also have still the same problem in the IDE setting, so also not the adapters fault (seemingly).

superg commented 1 year ago

I checked your dump, I see no issues there, everything was dumped correctly. As I've explained before, I don't know any way to burn multisession CUE for a track split. First of all, multitrack dump of data disc is largely an invention of redump.org. Before that, dumping software was generating a single .img file for a data disc dump (CloneCD for instance). You will be able to burn your dump if you manually combine all tracks into one, such a combine will match 1:1 with CloneCD img file by the way.

If you're curious, here is the thread with more information on IsoBuster and multisession tags that we use: https://github.com/saramibreak/DiscImageCreator/issues/121

Some IDE-USB remarks: I own a number of drives that doesn't work with any USB adapters, 4012 is one of such drives I think.. There is some incompatibility which I have yet to understand and all such drives work if connected to native IDE or IDE-PCI card.

Feathered-Serpent commented 1 year ago

Thank you for the time to investigate the dump. If removing the leadout is anything that is needed to make the image work with Isobuster, then this shall be enough for me, as I have reached the goal to have a backup, I could work with from my NAS, in case the original disc ever can't be read anymore.

@IDE-USB: I suppose there are some IDE commands, that these adapters might not understand. Sounds strange, that it is this difficult to convert commands from such an old interface!

Case closed :)