On Monday 20 November 2006 19:27, Mike McCarty wrote:
> Anne Wilson wrote:
> > On Monday 20 November 2006 18:13, Stuart wrote:
> >>I did not not know about the temporary nature of RW,
> >>thanks for mentioning that. I know nothing about dvd yet
> >>execpt that that they hold a lot of data (although much
> >>smaller than modern disks) and come in different flavors.
> >>I have a lot of reading to do...
> >
> > In respect of life and storage requirements they are exactly the same,
> > IMO, as CDs.
>
> Do you speak as an expert, from experience, or from hearsay?
> In my experience RW technology loses data. I have not experienced
> data loss with just a writable CD. (Except in the case of
> physical damage to the medium, that is.) I've seen an RW get
> data corruption in 3years of sitting on a shelf. I have yet
> to see a writable CDROM lose data.
>
> [snip]
>
> > How good the burn actually is must have an effect. Another factor that
> > has an effect is exposure to ultra-violet. Disks should be kept in
> > cases, and away from sunlight.
>
> Always good advice. Also away from moisture. I dunno whether enough
> UV exits a fluorescent lamp, but I keep mine in the dark since I have
> them in my home.
>
You've misunderstood what I said, Mike. I had said, earlier in the thread,
that RW disks should be treated as temporary only. I was speaking of the
lifetime and storage requirements of CD and DVD as being the same - and I did
add 'IMO' A well burned and carefully handled and stored CD or DVD should
have quite a long lifetime. I would never use RW disks for anything other
than very short-term storage. I did, for instance, use a couple just before
I installed FC6, just in case I made a boo-boo and formatted my FC4 /home,
instead of another directory that I intended to use for my FC6 /home. The
life expectancy for that need was 24 hours.
Anne
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