[Scummvm-devel] md5 checksums

[Max Horn]

Am 29.01.2007 um 19:39 schrieb Stephen:

> I was checking the md5 sums for the games I have against the website,
> and I have a few questions.
>
> 1. The values listed as (Mac Bundle), is this the value for an
> unextracted mac data file? None of the mac demos on the website match
> up with this in that way. Extracted, I can match their values up
> fine. Can someone explain this?

I think we list values for both the extracted and unextracted  
versions (the latter are preferred nowadays). However, for computing  
the MD5 of SCUMM files, only the first megabyte is considered, i.e.  
the first 1048576 bytes.

> What I get for the unextracted Mac Data files:
> The Dig (Mac/Demo):7bc30eab02da1a6a1e4e9ede528e6be4
> Full Throttle (Mac/Demo): be7ee4d2de086668e0a16b0cd5514faa
> Sam & Max (Mac/Demo): 9f1f65d3426258a2768e1bcf85e4599e
>
> 2. I think it should be noted that the md5 for Maniac Mansion
> (English/DOS/V1/Demo) is the same as the md5 for Maniac Mansion
> (English/DOS/V1)

Known issue. We don't list the MD5 twice because that would cause  
problems for the game detector code, which uses the same data file  
that is used to generate the online tables you are looking at.

More annoying is that the MD5 sum 39cb9dec16fa16f38d79acd80effb059  
occurs twice, and I still don't know if that's a mistake, or correct  
(never got replies from the people associated to that MD5).

>
> 3. I can confirm a number of md5 checksums which currently only have
> one name associated with them, but I don't know whether this regarded
> as a valuable thing or not.

We mainly keep track of these names so that in case of  
inconsistencies, we know whom to contact to resolve them.


Bye,
Max