Um.. How do you back up 10s of GIGA bytes to CD Roms?? :) On a daily basis? I CDR is 650MB. I think he currently has in the order of 40GB, that's over 60 CDs.. little much to ask to be done in a single day.. :) Not to mention the environmental nightmare 1000s of useless CDs being dumped cause.. An you can only zap so many in a microwave oven before it gets boring.. :) Basically, yes a CD will last a long time (NOT forever though!!) so if you want to backup a single project as an archive fine, but to backup the state of his entire business with all the software development, data changes, email, accounting etc, etc daily they are useless.. If the USB drive breaks, buy a new one (or better, have a spare on hand). That is why you have multiple backup sets. If one fails you can replace it and still have at most a day of work lost if everything dies.. Cheers, Ash --- Ashley Roll Digital Nemesis Pty Ltd www.digitalnemesis.com Mobile: +61 (0)417 705 718 > -----Original Message----- > From: pic microcontroller discussion list > [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Andre Abelian > Sent: Wednesday, 27 February 2002 10:40 AM > To: PICLIST@MITVMA.MIT.EDU > Subject: Re: [OT]: Hard Drive Crash Recovery > > > Soon USB hard drive will stop. > I use CDR for backup > > Andre > > > > > > Hi Everyone, > > A good friend of mine has a business with MANY 10s of GB of important > data.. > When you start to get that much, it really isn't economical to backup > onto > tape anymore.. the tapes cost HEAPS (especially if you want a full > weekly > rotation) and do eventually wear out.. > > He uses external hard disks in external cases that provide a USB > interface. > Easy and quick. You can even easily take them off site. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads