Before revision: Cartridge Sanyo Tapepack AS-20W for Micro-Pack 35 tape recorderThe cartridges were transparent plastic measuring 2.6" wide, 2.9" long and 1.9" thick × × .1964 "Sanyo Micro Pack 35 / Channel Master 6546", Audiomuseum.com, retrieved 5 November 2016 The identical cartridge branded with Channel Master got the name "Model 6595" and contained of tape.
After revision: Cartridge Sanyo Tapepack AS-20W for Micro-Pack 35 tape recorderThe recording cartridges were made of transparent plastic and measured 2.6" wide, 2.9" long and 1.9" thick × × .1964 "Sanyo Micro Pack 35 / Channel Master 6546", Audiomuseum.com, retrieved 5 November 2016 The Channel Master version of the cartridge was labeled as the "Model 6595" and contained of tape.