Cart machine

A magnetic-tape playback system slowly going the way of the dodo. Short for "tape cartridge machine," it is a playback machine that uses endless loops of magnetic tape in plastic cartridges. Used most often in broadcasting for commercials and announcements, the cart machine also found a niche in theatrical sound playback. While many are still in existence, newer technologies have taken over: MiniDisc, Compact Disc, 360 Systems DigiCart, etc., etc.