> I have my chds inside folders inside the roms folder. > Example: roms\area51\area51.chd, area51t.chd > > Is this unnecessary? > Should the chd files just reside in the roms folder?
Both ways work, but I recommend the folders inside the roms folder setup. And the batch file you cited did not come with MAME; it's by another user and reflects only how they prefer to organize things.