The noun disc has 4 senses (first 2 from tagged texts)
1. (10) phonograph record, phonograph recording, record, disk, disc, platter -- (sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove)
2. (1) disk, disc, saucer -- (something with a round shape like a flat circular plate)
3. magnetic disk, magnetic disc, disk, disc -- ((computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored)