NOS TDK D90 and SA90 Blank Audio Cassette Tapes

New TDK blank audio cassette tapes. This set includes one D90 Normal Position Type I tape and one SA90 High Position Type II tape. Both cassettes have a 90-minute recording capacity. The D90 is a dynamic cassette with low noise and high output. The SA90 is designed for CD recording with a super precision rigid cassette mechanism. Both items are in their original plastic wrap.