DSC Siltec wrote: Ross Boylan wrote: > > I'm trying to do a fairly comprehensive system backup to CD-R. The > amount I have to backup is much larger than the free space on the > system, which in turn is larger than a CD-R. > Just a thought -- I have heard that CD-Rs have a 1-bit per 100kB error rate in 1 year. What that means is that in your typical 1-Meg program, backed up to CD-R, you're not going to be able to use it after about a year. So CD-R would *only* be useful for short term backup, or if there were multiple copies of the same program. Therefore, what you might be interested in looking for would be a program that archived newly modified files, and then a selection of old files based on how long it had been since that file was last backed up, enough to fill a CD. And not compressed, just written straight. Then, it would write the "updates" to another master-CD. Then, if it was necessary to restore system data, the program would ask for specific CDs by number, and restore the proper files, either double-checking with multiple copies, or running a checksum to be sure that the files were still valid.
I don't know if such a backup program exists, though. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
