Brand: Maxell. MPN: 108510. Audio cassette players are still in demand. So is the need to have regular audio cassette tapes that work in them. The Maxell UR-90 Normal Bias Cassette Tape stored in its included jewel case is ideal for recording everyday voice lectures and music. Use it in personal portables as well as dictation equipment that accepts a standard cassette. Each tape holds a total of 90 minutes of audio recordings 45 minutes per side.