Musical sound recordings and musical video recordings; phonograph records featuring music; pre-recorded audio cassettes featuring music; pre-recorded video cassettes featuring music; compact discs featuring music; minidiscs featuring music; digital video discs featuring music; [ video cassette recorders and video tape players; audio cassette recorders and audio cassette players; radios; hi-fi speakers, hi-fi receivers, hi-fi amplifiers; stereo amplifiers; stereo receivers; stereo tuners; comp...