Here's the video this is a response to: https://www.youtube.com/watch?v=XyM7qV1tKVA So yeah, that mysterious Teac floppy cleaner I got a while back? The mystery deepens and it's brought me to this FD Head Cleaning Disk sold by Justy. In Japan these are often known by the term 乾式 ヘッドクリーニングディスク, or "dry head cleaning disc." These "dry type" cleaners are in contrast to the "wet type" disks with cloth inside that you moisten with liquid. However, seeing this side-by-side with that disk from Teac? Yeah. I have more questions.