From: utzoo!decvax!ucbvax!info-cpm Newsgroups: fa.info-cpm Title: Floppy Disk Warning!!! Article-I.D.: ucbvax.321 Posted: Fri Dec 10 14:23:24 1982 Received: Tue Dec 14 01:33:35 1982 >From dag@UCBARPA.BERKELEY.ARPA Fri Dec 10 14:10:32 1982 Received: from UCBARPA.BERKELEY.ARPA by UCBVAX.BERKELEY.ARPA (3.227 [10/22/82]) id A03289; 10-Dec-82 02:52:32-PST (Fri) Received: by UCBVAX.BERKELEY.ARPA (3.227 [10/22/82]) id A15325; 10-Dec-82 14:23:01-PST (Fri) To: info-cpm@BRL, info-micro@BRL Via: Ucb-C70; 10 Dec 82 5:55-EST Via: Brl; 10 Dec 82 6:06-EST Via: Brl-Bmd; 10 Dec 82 6:19-EST This comes third hand from a materials scientist in Silicon Valley who is working on hard disk recording methods. I am not sure of the actual techical accuracy, but the gist is AVOID ELEPHANT MEMORY DISKS - THEY WILL SCREW UP YOUR HEADS. The disks have a large amount of what I think he called Alumina. Although the disks do not seem to have many errors, they have an interesting side effect. The alumina(?) is used to reduce cost and increase disk reliability, but too much will erode the heads of disk drives. The Elephant disks have too much. I am trying to get a more specific and accurate description of the problem and will post it as soon as I decipher it. In the intevening weeks, simply beware of Elephehant memory disks. David