Amazon.com: TDK Superior Normal Bias D90 blank cassette tapes (Pack of 6) : Electronics
Amazon.com: TDK D120 Slimline EcoCase High Output Precision Rigid Construction Mechanism IEC I / Type I Normal Bias Audio Cassette Tapes - 2 Pack : Electronics
Amazon.com: TDK D90 Audio Cassette Tape Type I -SET OF 2 : Home & Kitchen