On Fri, 11 Feb 2005, William Layer wrote: > Unless I'm quite mistaken, the 1.2M drives have two r/w heads - one for each side of the media, whereas the 360K have only one. Sorry -- quite mistaken! :-) 360K drives are double-sided, eg. two heads. The 160K/180K drives were single-sided. I doubt there's many of those left waiting to identify. Think: Sanitary landfill.