ha...it's very good, but i use it to scan my roms , it says:

Multi Amenity Cassette System 2 BIOS [system: Multi Amenity Cassette System 2 BIOS - folder: mac2bios - size: 1mb]
unneeded file: E:\MAME\BIOS\mac2bios\macs2os_h.bin
unneeded file: E:\MAME\BIOS\mac2bios\macs2os_l.bin

but this bios is correct, and when i click the button "AutodetectSysDefPaths...", the application crash...maybe there is something wrong with 3.108a