Maxell - UR 90min (Type I) Blank audio cassette - Multiple models

Maxell UR 90-minute Type I blank audio cassettes are magnetic tape media intended for analog recording and playback of sound. Type I tapes, also known as normal bias tapes, were among the earliest and most common cassette tape varieties, appreciated for balanced sound quality and affordability. The 90-minute length (typically 45 minutes per side) allowed users to record substantial audio content, such as entire albums or mixtapes. Maxell is a prominent manufacturer of magnetic tapes and audio accessories, particularly famous throughout the 1970s-1990s when cassette tapes were a primary medium for portable and home audio recording. Blank cassettes like the UR 90 enable consumers to create custom recordings from radios, turntables, or other sources, often valued for nostalgic or archival purposes today. They represent a key technology in the history of audio distribution, preceding digital formats.