This is a CED, Capacitance Electronic Disc, manufactured by RCA in the early 1980’s. It is not a Laser Disk, CD, or DVD, and is not compatible with any other video or audio format. The CED is video and audio recorded onto a vinyl disc, and played with a needle, similar to an LP record. This technology was introduced by RCA in 1980. Thereafter, VHS, BETA, 12” Laser Discs, and DVD’s came along. The CED Players were available under eleven Brand Names. About 1700 Video Titles were printed in the CED format. To learn more about CED Technology, go to cedmagic.com. If you have a stylus that needs cleaned or repaired, or need a new one, go to cedatum.net