I was browsing Yahoo today and found this guy that's selling a bunch of NOS micro-cassette boomboxes. Thought you guys might like these https://auctions.yahoo.co.jp/seller/sherrys_r5?ei=UTF-8&sid=sherrys_r5&auccat=23764 Highlights include: A Sanyo with a removable micro cassette recorder: https://page.auctions.yahoo.co.jp/jp/auction/w207733152 Aiwa and Sanyo dual deck with one normal and one micro-cassette! https://page.auctions.yahoo.co.jp/jp/auction/f245037853 https://page.auctions.yahoo.co.jp/jp/auction/w207733748 I had no idea micro-cassette was ever used for something other than voice recording. Seems at one point people thought it might replace compact cassettes! The green sticker on the front of the Aiwa translates to "Double Cassette for a New Era"