On your cassette player there should be two RCA Jacks one red and one white. They sell a conversion device into a HDMI plug. Then use a capture program such as adobe audition. http://www.amazon.com/Portable-Cassette-Adapter-Software-Features/dp/B005DF2QMC/ref=sr_1_1?ie=UTF8&qid=1363823917&sr...

Impaler 1965, with toy Thompson.