> if you use split merged sets you should have:
>
> rompath\evilngt.zip
> rompath\hellngt\810eaa02.chd
>
This is exactly what I'm using.

>
> Be sure you're using the latest cmpro and be sure you take the data comes from
> an official mame binary.
>

I'm using clrmame 119a and created the datfile from mame0128b_i686.exe downloaded from mamedev.
Just to be sure, I also got MameUI32 and got the same result.

Thank you (and sorry for the weird problem).