Wow this looks kind of crazy, it's quite expensive with a starting bid of $750.00 but intriguing all the same. The seller says "YOU CAN USE AGAIN ALL TIMES IF YOU WISH , BECAUSE WORKS LIKE A TAPE". The pics clearly show the disks labelled 'Magnetton-Platte' so yeah I'm assuming its a magnetic disk recorder, which, I have to admit, I previously didn't know exsisted. Theres another one detailed on this site with some info and I assume that the device on ebay is based on the same principle. Via Mangalore at the new Human Shield blog.