On 4/8/2013 7:58 AM, m.roth at 5-cent.us wrote: > Good thought... but I think I had one of them disconnected before I took > my system down yesterday and connected both. I will note that the 5.25" > one's light does seem to stay on, regardless. OH. another rusty old memory. if you plugged a floppy cable in upside down (only possible if the cable wasn't keyed, but I remember quite a few that werent), it grounded both drive select and write select, and the drive would write nulls (or something) all over any track that was seeked to, without even sector formatting. this would, of course, erase any disk you inserted. also, the LED would stay on. -- john r pierce 37N 122W somewhere on the middle of the left coast