[tWeaKmoD]

Short version:
When I went to copy backup files over, I got two different errors, one was a "Cyclic Redundancy Check" the other was "cant read from the source or disk". I copied the files onto another computer with no problem. I get the "Cyclic Redundancy Check" error randomly on different files. Sometimes if I get the error and then just try to copy to files again, it may or may not work. Does this mean the drive is failing and needs to be replaced?


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Long version with info on what I have done to try to fix it:
I posted a while back about my girlfriends laptop just randomly decided it was going to stop playing the DVD "Mona Lisa Smile". We just pushed it asside because I didn't know what would cause it. Then she told me some of her other DVDs would work sometimes but not others. (When I say dont work, I mean My Computer does not even show that anything is in the DVD drive) Well, I tried some other CD's (one was a netgear CD) and it would work hit or miss. The netgear CD would never work, but it would work on a different computer. I booted to safe mode, just for a check but the same things happened. So I backed up her files and did a reformat reinstall. I figured that atleast her Mona Lisa Smile would work again like it did when she bought her computer, but in fact it did not.

I have contacted HP (the make of her laptop) via email and they said they would send me a replacement drive for me to swap, and I can just send back the broken one. I am still waiting for them to call me for my credit card information (they need this incase I try to rip them off and keep both drives). This is actually another story in itself because I talked to two different people, one person said he could send me a replacement drive to swap, the other guy said he couldnt and that I needed to send it to them. But right now that is not what I am posting about, I just want to know if anyone knows anything about this error and if it sounds like this drive is heading to the dump.

Sorry for the long post, this is really not making any sense to me.

[Neuromancer]

There are 2 MS links
Here

and here

[tWeaKmoD]

There are 2 MS links
Here

and here

Looking right now thanks. BTW, the links are the same

[Neuromancer]

oops

Here is the other

[tWeaKmoD]

I didnt even try the MS website. I did a google on the Cyclic Redundancy Check but none of the stuff helped.

[Neuromancer]

I remembered that XP had some issues with DVDs before...

Inter-Actual player caused some problems too... dont know if that was mentioned in the links

[tWeaKmoD]

I remembered that XP had some issues with DVDs before...

Inter-Actual player caused some problems too... dont know if that was mentioned in the links

I know Intervideo DVDs do work because other ones work. What really gets me is that we watched this DVD a number of times until one day it just stopped. Ever since then that specific DVD has never worked, other DVDs are hit and miss, and most data CDs are hit and miss. All this hit and miss is really making me wonder.

[tWeaKmoD]

This makes me think I have a bad drive: http://www.techspot.com/vb/archive/index/t-7825.html

Every computer I have had a cyclic redundancy error in was a problem with the CD-Rom drive and the CD. The CD worked fine in other drives, just not that one for some reason. Check your cables in the case.

http://www.short-media.com/forum/archiv ... 25692.html

Sounds like a DVD-ROM issue to me. Try a cd-drve cleaner (you can buy them at just about any store that sells DVD players, stereos, computers, etc for less than $10), or compressed air as a last resort.

If none of that works, you'll prolly need a new drive. It's happened to me way too many times; first the drive has issues reading data, and eventually it can't see the CD at all.

[Weaver]

Either a problematic disc or a problematic drive. Some drives are more sensitive than others. If the disc works decent in other drives it is most likely the drive, but know that bad discs are becoming more and more common (at least to me). Recordable media doesn't last as long as store bought stamped/pressed/pre-burned media.

-Weaver

[dmkst56]

Cyclic Redundancy Check, in layman's terms, is what a computer uses for data security.

When a computer writes data to a disk drive, it writes extra data to help recover it if the disk gets damaged. If the disk happens to get damaged enough that it ruins the CRC data as well, you'll get a 'Cyclic Redundancy Check' error.

Which means that there is absolutely no way to recover the data that has been affected, unless it's the drive you're using to read it rather than the disk itself.