Samples are used to give sound to systems that Mame can't currently emulate the sound on. They are also used by some computer systems to simulate the sound of floppy drives or keyboard clicks. Samples are stored in the
C:\Mame\samples folder. You can download samples from Twisty's Mame Samples page, Progetto-Snaps or as part of the Mame Extras torrent on Pleasuredome.