Carlos E. R. wrote:
The Tuesday 2007-02-20 at 08:59 +0100, jdd wrote:
I would have to find a source closer to me than that. don't worry, the quality may have fallen as soon as the test was known :-)
X-)
and who will be here in 100 years to know if Kodal ly or not? whow cares?
Paper...
the only backup reliable is redundency. Think your house can get fire or water flood. Spread your valuable data...
Even backing up two different sets of dvds is no guarantee. A dvd can develop a failure in one sector, the second copy in another sector. Would there be a way to generate a correct copy from both?
The thing is, we need software that generates reliable backups using unreliable media. This was done in the past.
For instance, sectors would have redundancy in another sector of the same disk, spread around, so that a read error in a region of the disk is not fatal.
I read about a software that created a redundancy set for a dvd, but needs to be stored somewhere else. If the dvd develops errors, the data can be recovered using that software and the error prevention set for that dvd. Nice idea, but cumbersome... that data should be integrated inside the same dvd.
I thought CDs (and DVDs?) were written with data interleaving, so that forward error correction could be used to handle bad spots on the disk. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org