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: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
