CRC Errors when copying to HD

[terrypin]

From my initial research I gather these 'Cyclic Redundancy Check' messages are by no means uncommon. But I'm puzzled why occasionally a DVD plays OK in my lounge player but when I try to copy it to my HD I get the CRC errors.

1. Why does that distinction arise? If the disc has become corrupted in some way then surely it shouldn't play on anything?

2. What can I do to try repairing it? I have IsoBuster but even after a few hours research I'm darned if I can fathom how to use it. The Help (and even the couple of tutorials I've unearthed) appear to assume the reader is already well-informed about the technicalities of DVD structures etc. So I'm seeking either:
- a simple 'How To for non-techies' explaining the steps to attempt a repair with IsoBuster
- or some alternative no-brainer program.

3. Is it in fact usually worth trying to repair it in the opinion of more experienced users please?

--
Terry, East Grinstead, UK

[guns1inger]

Different readers have different tolerance depending on quality of parts, age and amount of use etc. There is also a great deal of difference between how a disc is read for playback, where error correction might get you past a small glitch, and copying, where every bit counts. A CRC could come from a number of sources - a scratch, a finger print, a disc not put correctly in the tray - they have even been known to come from the latest copy protection if you are using older software (e.g. DVD Shrink) for ripping.

If you find ISOBuster daunting, try ISOPuzzle instead. Much simpler and does a pretty good job.

Whether or not it is worth it is up to you. If it plays back OK, why worry. It could just be that your PC drive is not doing it's job well enough, and have nothing at all to do with the disc itself.

[terrypin]

Thanks, appreciate the advice. I'll install and try ISOPuzzle.

I'm reluctant to give up completely on ISOBuster, so would still like to hear of any straightforward tutorials please.

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Terry, East Grinstead, UK