Windows Explorer search is a good tool if used properly. For example if you search snes ROMS for *[J]*.* that will list all roms with [J] in the filename. Then you can cut and paste those to a new directory. Use the same technique for other roms, until youve got your primary roms dir down, then you can manually go in and move other roms you dont want to another dir. There are free programs around that do this for MAME, yourll just have to have a look around, unless some others know. You can also use search again though for finding files based on size, and then move them off to another dir.