> when I try to run area51 max force duo
> i get an error
> area51mx.chd wrong checksums
> expected SHA1 (BLA BLA BLA )
> found SHA1 (BLA BLA different numbers)
> unsuported chd version
>
> Anyone know how to fix this.
>
> ps Im really new to clrmame pro
> Cheers,
>


This output ("expected...") is no ClrMamePro output. So either you haven't updated the chd image via chdman -update or the file is simply bad. I bet you haven't updated it yet.