AC power purification devices, including but not limited to, devices that regenerate ac power, regulate voltage, filter the incoming ac line to audio, digital and/or video components, and/or isolate audio, digital and/or video components from each other; audio components and accessories, including, cartridges, cartridge demagnetizers, speaker cables, shielded interconnect cables, fiber-optic cables, audio equipment cleaners and turntable accessories, comprising turntable mats, turntable feet and the like, interconnecting cables and parts thereof, musical sound recordings; video recordings featuring music; and computer software for creating musical sound effects, video components and accessories, including, speaker cables, shielded interconnect cables, fiber-optic cables, cables for carrying analog or digital video, video equipment cleaners, cables and cabling parts for interconnecting video and audio/video components; electrical and scientific apparatus, including, radios, receivers, CD players, stereos, combination music units, Internet signal processors for generating music/audio signals, sound systems, entertainment or information appliances including video display; parts and accessories in this class for the aforesaid goods