Cassette Tapes Alternative ways to recycle Put in Garbage Recycle the Plastic Casing Only The cassette’s plastic casing can be recycled as long as the magnetic tape inside is removed. The magnetic tape is not recyclable. Alternative Ways to Recycle Mail to GreenDisk GreenDisk is a company that provides secured and audited disposal of personal property stored on digital media. Through their Technotrash Pack-It program, they will dispose of any unwanted audio cassette and VHS tapes. Find out more about their services. Ways to Reduce Donate Used Tapes Consider dropping off old audio cassette tapes at your nearest library or thrift store, which extends their lifespan.