Author Topic: [Dreamcast] Different checksum for track02.raw?  (Read 186 times)

Offline Drakkhen

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[Dreamcast] Different checksum for track02.raw?
« on: January 19, 2023, 05:06:18 PM »
Using SDRip on my Dreamcast and cross-referencing TOSEC, I'm seeing that for some games like The House of the Dead 2 US NTSC, every file in the dump matches TOSEC's checksums EXCEPT the track02.raw.

Is this OK/normal, or is it an imperfect rip?



Offline Aral

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Re: [Dreamcast] Different checksum for track02.raw?
« Reply #1 on: January 20, 2023, 10:38:01 PM »
Have a look at the following webpage to point you in the right direction

https://www.tosecdev.org/faq/2-general/14-where-can-i-get-the-roms

Sorry but we do NOT provide roms or any illegal material.

Our project aim is to catalog software history, by providing datfiles that identify existent sets, renaming them based on our naming convention.

Offline Drakkhen

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Re: [Dreamcast] Different checksum for track02.raw?
« Reply #2 on: January 22, 2023, 01:57:51 AM »
Hi, understood, I'm not asking for ROMs or anything, but I am wondering why my own rip's track02.raw seems to differ from TOSEC's checksum. Is it that I have a unique disc? Should I submit this?

Offline Aral

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Re: [Dreamcast] Different checksum for track02.raw?
« Reply #3 on: January 22, 2023, 10:28:55 AM »
Have you tried any other games to see if they match the respective checksums?

Offline Maddog

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Re: [Dreamcast] Different checksum for track02.raw?
« Reply #4 on: January 23, 2023, 01:37:53 PM »
Using SDRip on my Dreamcast and cross-referencing TOSEC, I'm seeing that for some games like The House of the Dead 2 US NTSC, every file in the dump matches TOSEC's checksums EXCEPT the track02.raw.

Is this OK/normal, or is it an imperfect rip?

There are certain discs that have more than one print runs and different disc audio offset. I don't want to go too technical, but if your ringcode (serial at the bottom of the disc) is different from what is shown in the dat, then it's likely to be different.
Specifically for House of the Dead 2, the verified dumps came from *12S* 51002 and *13S* 51002 ringcodes.
If you have any other, it will likely not match. And what is more, we need these dumps submitted to us to match many unverifieds sitting around.
Again specifically for HOTD 2, we have *7S*, *9S* and MK-51002 1Mx ringcodes that are currently unverified. If you can help verifying any of those, I would be obliged.
Detailed lists of all known discs are supplied here: https://dcemulation.org/dumpcast/viewtopic.php?t=4052