Folks,
I bought some CD-Rom disks last year for storing files for the local Ham club.
The company that I buy all my computer gear from, didn't have any of the usual Imation disks so they said they could provide me with some Spin-X brand CD's at the same price and that they were of the same quality.
I filled these disks up with a lot of information for the club and as the Secretary, most of the inwards and outwards correspondence went on these disks.
I never thought any more about it, until today.
I went to have a look at the December Newsletter sent to us from another club on one of the CD's.
I was met with the following prompt window:

Windows cannot open this file,there may be a fault with the disk, please insert another disk and try again.

I tried the other 5 disks that were of the same order, same thing, no go.
I was absolutely mortified,
I have added files to these CD's one at a time as they have been recieved, without any warnings at all.
Why has this happened all of a sudden?.
I even asked the Treasurer to try them out in his computer, same thing occurred.
I always thought that CD-R's were a reasonably secure form of storage, I'm not so sure about that idea now.
Is there any way that I can salvage the information off of these disks?.
Your thoughts on using CD-R disks?.