> Is posible make a dummy file (not fix), this file contains a Name of set, full
> rom internal (archives, size, crc, etc) and when change ask for a rom and
> correct it.

erm...I'm not quiete sure what you mean. Creating dummyfiles for missing sets? No. That's not supported...neither I don't see any sense behind it.

Roman Scherzer
ClrMamePro