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Posted by Spack on 08/03/06 13:05
hartlyuk@yahoo.com wrote on 3 Aug 2006 04:37:17 -0700:
> I have stored computer data on four dvd+r discs.
> They all seem to have failed,that is one is not even recognized as a
> disc by the computer, and half the files have gone missing from the
> others.
> They have scratches on them.
> The free versions of cdroller and isobuster will not recover the lost
> files.
> Is there anyway I can access these files again?.
> I cannot believe they have all physically vanished
> I am astounded that these dvd discs are so vunerable to failure due
> to a few scratches.
> Why are the Microsoft programs running on the computer so sensitive
>
> to a few scratches?.
> One would think they can display files with data 'holes' in them,but
> they just seem to ignore the whole disc if one tiny bit of one data
> track is scratched.
> Grateful for any help ,Hartly.
Why do think it's the programs that are the problem? More likely it's the
DVD drive itself that is seeing the discs as unusable. The MS drivers can
only pull up a TOC list and provide access to the files if the DVD drive can
provide the data to them. And cdroller and isobuster are not Microsoft
programs, they're third party applications. You've already mentioned that
some of the discs are missing files - these are the ones where the disc is
undamaged enough for the drive to get the data needed. Why blame the
software when it's pretty obvious that the DVD drive itself is too sensitive
or the scratches on the unusable disc are in critical areas of the data?
It's entirely possible that it's not the scratches that are causing the
problems, it could well be they dye. Did you leave these discs face up at
all in daylight? UV will cause the dye deteriorate. Always keep writable
discs in a case to avoid scratches, and in never them lying around face up -
ideally put them in cases that aren't clear.
Dan
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