TDK MA46 Metal Cassette Tape, Super High Quality, Digital Compatible, - Brand: TDK - Model: MA46 - Type: Metal Cassette - Position: Type IV Thank you for viewing. In the 1990s, when CD rentals were booming, I also used these often because of their good sound quality. I am selling these as part of a home clean-up, hoping someone will use them. Please note that I cannot guarantee the operation of these tapes as they are over 30 years old and unopened. Thank you for your understanding before considering a purchase.