I was referring to if you had both MD5 & SHA1 selected if clrmame processed both hashes.

I'm assuming it does.

EgotisticalElf

> > If i have a dat file some roms with only crc32, some with md5 and some with
> > sha1, does clrmame choose which to hash if you select all three? or does it
> > always do all 3?
> >
> > Is the speed even worth considering contemplating a "smart hash"? ie. sha1
> then
> > md5 then crc32?
> >
> > EgotisticalElf
> >
>
>
> CRC32 is a must, SHA1/MD5 are optional parameters. You can enable or disable any
> used hashalgorithm in scanner->checksums. Of course a sha1/md5 check means you
> have to unzip packed files to memory to calculate the checksums. This is of
> course time-intensive.
> Normally you don't have to enable sha1/md5 if you used the rebuilder or
> fixmissing to add new files. Both routines got a sha1/md5 check enabled, so only
> valid files can be added.
>
>
>
> Roman Scherzer
>