Ok, i understand now. But what do i have to do to have headerless files? Isnt there a feature in CMP to remove them? Or does a software can do this?

Thx for your answers.

> > Wow fast reply!
> >
> > Yeah i see but what i don't understand is why ClrMamePro does not simply
> rename
> > *.smc for example to *.bin instead of putting every game with another
> extension
> > in the backup folder! ClrMamePro did the same thing for some gameboy games
> that
> > were .gb instead of .sgb...
> >
>
> It doesn't put them in the backupfolder because of the wrong extension.
> Fixname renames them fine.
> The problem is that your files are marked as unneded because they probably still
> have a header and so the crc32 doesn't match. Goodtools don't care about headers
> and skip them if they exist. Clrmamepro calculates the hashes over the full
> file, so you need headerless files (and sometimes correct byte-ordering) to
> match.
>
> Roman Scherzer
> ClrMamePro
>