> If there is, say:
>
> Game [file inside zip has crc 0]
> Game (Beta) [file inside zip has crc 1]
>
> and a new version of a dat file swaps them around:
>
> Game [file inside zip has crc 1]
> Game (Beta) [file inside zip has crc 0]
>
> ClrMame gets confused and says that they are both missing instead of renaming
> them properly. You have to move both files to another directory and do a rebuild
> to get the right names.
>

Hmm...works fine here. Circular renames are supported since years. Just retested it with a modified puckman set where I exchanged the checksumvalues of 6e with 6f:

PuckMan (Japan set 1, Probably Bootleg) [folder: puckman - size: 8kb]
wrong name: D:\temp\test\puckman\namcopac.6e [wrong: namcopac.6e] [right: namcopac.6f]
wrong name: D:\temp\test\puckman\namcopac.6f [wrong: namcopac.6f] [right: namcopac.6e]




Roman Scherzer