1

(2 replies, posted in Fixes & additions)

What are the differences in the dump, though? Is it just a Rev?
The special edition matches GOTY and War Collection, so (Special Edition) isn't correct

I believe Redumper does not work as far back as Windows XP.

You will have to use DiscImageCreator if you want to dump on the Windows XP machine.

Hi, I have not tested MPF on XP, it's just a build of MPF that *should* work.
You'll need Dotnet installed: https://dotnet.microsoft.com/en-us/down … work/net40
And then (try to) run this: https://github.com/Deterous/MPF-Legacy/ … _win32.zip

If it's not working, I recommend running the dumping tools (DIC/Redumper) directly via command line on your old machine, and then on a modern machine running MPF.Check on the dump files (You can do this in the GUI, Tools->Check Dump).

4

(3,534 replies, posted in General discussion)

Sarami, a verification for http://redump.org/disc/74375/ was recently dumped using 20250101 which had a different pregap for Track 4 (00:02:49). I have attached the logs.

========== TOC with pregap ==========
    Track  1, Ctl 4, Mode 1, Index0   -150, Index1      0
    Track  2, Ctl 0, Mode 0, Index0  44850, Index1  45000
    Track  3, Ctl 0, Mode 0, Index0  62592, Index1  62792
    Track  4, Ctl 0, Mode 0, Index0  68996, Index1  69195
    Track  5, Ctl 0, Mode 0, Index0  79270, Index1  79470
    Track  6, Ctl 0, Mode 0, Index0  95142, Index1  95342
    Track  7, Ctl 0, Mode 0, Index0  99005, Index1  99205
    Track  8, Ctl 0, Mode 0, Index0 101340, Index1 101540
    Track  9, Ctl 0, Mode 0, Index0 103517, Index1 103717
    Track 10, Ctl 0, Mode 0, Index0 107547, Index1 107747
    Track 11, Ctl 0, Mode 0, Index0 109585, Index1 109785

Track 4 Index 0 in _disc.txt returned 68996 (199 sector pregap)

5

(2 replies, posted in Verifications)

Moved to verifications

To determine if datname modifiers are actually needed, are you able to check langs for the following:
http://redump.org/disc/60790/
http://redump.org/disc/58720/
http://redump.org/disc/70643/

7

(2 replies, posted in Verifications)

Please upload logs zip

Please upload logs zip

9

(2 replies, posted in Verifications)

Please upload logs zip

If you have the time to, submitting logs from both tools is good. But it is not required.

The error count is still 0, as per redump.org rules around what errors get counted (invalid sync sectors are not counted in the error count). The only change is the index 1 position for two tracks.

I will see if superg can respond to your questions, better than I could.

Urk wrote:

I thought that it was the reason why Redumper was later accepted than DIC for dumps.

Redumper is new, that is why it is only recently accepted.

Both tools are dumping the exact same data from the discs, the difference is in how they are doing post-processing.
For the Might & Magic disc, they just split at different locations. DIC has identical pregap lengths for all tracks, Redumper has different pregap for Track 30 and 32. For this disc, it is due to the subcode desync messages, likely needs to be fixed (Redumper currently incorrect splits). I have fixed redump.org hashes to include the DIC splits (Tracks 29-32 have changed).

For the other two discs, they have some invalid sectors (one of which is EDC/ECC error). DIC and Redumper treat these errors differently, hence the different hashes. It is likely that redumper's method here is preferred. These are all the test cases that Redumper uses when determining what to do with invalid/unexpected sectors: https://github.com/superg/redumper/tree … unscramble

In what way did you think that DIC is better?
If you can then dumping with both can help ensure the dump is good, but Redumper is recommended for the majority of discs.

As for why the dumps are different, the logs give hints as to non-zero errors, invalid sync sectors.
There are some scenarios that Redumper and DIC deal with unexpected sectors differently.
I would have to look at the logs closer to be sure.

Also, please update your MPF to the latest version (3.3.0) which contains the recommended version of Redumper and has fixed a lot of bugs.

All discs in redump should now be (Disc 01) if it is from a set of 10 or more discs.
Roman numerals are also no longer used as disc numbers in the datname (this kind of info belongs in comments)
If you spot an inconsistency please let us know.

Work to support automatic/semi-automatic dumping of ring protection (or a subset of ring protection) is being done in redumper.

Until then, this is the guide you should follow for ringed discs. It is not for the faint of heart, takes a lot of time and effort:
http://www.wiki.redump.org/index.php?ti … ping_Guide

Moved to verifications

18

(3 replies, posted in Verifications)

Other drive models have been known to overdump. It must be something to do with XboxOne discs and the drives that support them. Fortunately, overdumping is simple to fix. I have moved this thread to verifications.

Same with your other dump, this is overdumped. The correct dump size according to the PIC should be 22978238464 bytes. If you trim it, it should match (and then I can add the verification)

20

(3 replies, posted in Verifications)

Hi, your dump is 29 sectors over-dumped.
I expect if you remove 29 sectors (59392 bytes) from the end of your dump, it will match with redump.
I'm not sure why it overdumped, something about the drive. The PIC tells us the correct dump size (22978238464 bytes)

Hello, please wait until you have received Dumper status before submitting any new discs.
Once you have received Dumper status, you will be able to use the newdisc form instead of the forum (for hashes not in the database).

Sorry for yet another request, but could you dump with this version of DIC?
https://github.com/saramibreak/DiscImag … 190326.zip

This is the version that was used by the dumper in the current entry. Perhaps DIC has changed since then.

Hi, you need to submit this disc to redump as a new disc: http://redump.org/newdisc/GC/
The region is probably Europe but the person adding the disc to redump will help you get the correct region.
Mention both version numbers in the comments of your submission, and it will be processed.

Hello, to your question, we format barcodes with a single space character in between regardless of the size of the whitespace between the numbers: 8 23162 00295 4

Also, the mastering SID you have is "IFPI L039 11/14/03 20:01:48"
We only retain the SID code itself in that field, "IFPI L039", the remaining text belongs in the mastering code (assuming it is lasered/etched). If it is stamped (on the mould itself) then it is "Additional Mould" text.

This specific version of this specific DRM seems to intentionally set the user data of sectors 299-1498 such that the scrambled data physically on the disc is all 0x00. During reading with a plextor, 16 sectors in that range give C2 errors, and additional non-C2 sectors in that range provide inconsistent data (non-reproducible hashes). The ASUS dumps also return those 16 C2 errors, as well as an additional 16 C2 errors (covering the locations of inconsistent sectors for the plextor).

[TECHNICAL DETAILS]
In the absence of better dumping hardware (EFM dumps, etc), I can only speculate as to the cause. My best guess is that the DRM is designed to make creating CD-Rs difficult, or make CD-Rs unplayable due to how burners at the time would have dealt with this intentional mastering 'error'. From the reading perspective, the drives may be getting invalid Digital Sum Values from all the 0x00 (similar to safedisc weak sectors), or something like that, resulting in C2 errors and inconsistencies.
[/TECHNICAL DETAILS]

I suggest for this protection scheme that the sectors in the 299-1198 range should be manually fixed to have valid sync headers, linearly incrementing MSF and scrambled 0x00 user data (Mode 2 Form 2), with 0x00 EDC, as it seems that is what is actually on the disc (but our drives are unable to read it). Based on prior inspection there are likely 20 or so sectors that need fixing, around LBA 300-370 (location differs for each dump on Plextors), or in the case of the ASUS dumps, the 32ish C2 errors need fixing in the way I described.

This can all be accomplished automatically by dumping with an ASUS drive and modified redumper that fills in C2 errors with fixed MSF and scrambled 0x00, rather than the default 0x55