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Unable to copy files from cd

I am running windows xp. whenever i try to copy files from cd it shows data error:cylic redundancy check. what's the error? how to fix it??

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Go to this site it will explain exactly what it means.
http://www.softwarepatch.com/tips/cyclic-redundancy.html

Posted on Mar 01, 2009

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Hi,
Please check with the another disk if the same issue is coming with different disks this is a ODD issue otherwise the disk is faulty as cyclic redundancy means the data could not red from the sector of the disk.
Thanks

Posted on Mar 01, 2009

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It is showing cyclic redundancy


Cylic Redundancy messages mean your Apollo drive is failing. You will need data recovery help this a good choice for low cost and fast data recovery. All data recovery work is performed remotely over the Internet from a boot cd that you download and the best part is they just ask for donations if you are happy with the results: http://FreeDataRecovery.us

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My harddisk isnt opening and is asking me to" format the disk before use".when i cancel it says"G:is not accessible.Data error(cylic redundancy check) kindly help me retrieve my data.it...


When you try to write a block of data onto the disk-drive, a CRC (Cyclic Redundancy Check) value is calculated, based on the values of the bits of the data. Then, both your data and the CRC are written to the disk-drive. When you read that block of data, the CRC is also read from the disk, and the CRC is recalculated, based on the data that was read from the disk.

If the "new" CRC does not match the "old" CRC, then your block of data has been corrupted,
i.e,. the disk-drive is malfunctioning.

See: https://services.seagate.com/index.aspx?lng=en-US
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HI GOOD EVENING I AM UNABLE TO COPY MY MICROSOFT OUTLOOK 2007 PST FILE TO EXTERNAL HARD DISK. AFTER STARTING COPY FEW MINUTES LATER I FACE THE FOLLOWING PROBLUM CANNOT COPY OUTLOOK:DATA ERROR(CYCLIC...


A "CRC" (Cyclic Redundancy Check) is caused by an disk-drive error.

When you write a "block' of data to your disk-drive, a CRC value is calculated, and is also written to the disk. When you try to read that "block" of data, the CRC value is also read from the disk,
and a new CRC is calculated from the data. If the "new" CRC does not match the "old" CRC, then you have a "check" condition -- either the data was not written correctly, or the data could not be read correctly.

Now, did the "check" message refer to the "source" of the copying operation (namely your 'C:' drive) , or the "target"(namely the external drive) ???

Try to copy the PST file to another file on your 'C:' drive.
If you do not see the "check", then it is the external disk-drive that has a problem.
If you do see the "check", then open Outlook, create a new folder,
and copy a group of messages into the new folder. If Outlook reports that one of the messages could not be copied, then the disk-space occupied by that message is faulty, and must be excluded.

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Take out the memory and then install the memory one stick at a time in each slot one at a time. Make sure to turn on the laptop after each stick reinsertion to see if you get video.

If you don't get video then go ahead and take out the hard drive and dvd drive as well. Now try turning on the laptop, if you still don't get video then the motherboard is bad and would need to be replaced.

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hi if your cd driver iz 'd' or instaling file iz in d then it must be cd problem. maximum it happenz with downloaded game. but if you have cd then go to shopkeeper and exchange it

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Cyclic redundancy error


In simple terms, a CRC is bit of mathematics used to ensure that your data is OK when being transfered. It's a checking procedure that quickly identifies when data has been damaged. If you get this message, it means that the file being read by your PC or software is corrupted. However, it does not mean all the data is lost forever. When data is transfered, it is usually in small blocks and each block is given a CRC value. If something goes wrong with the data between the time it leaves the source and arrives at its destination, the CRC sent at the source will no longer match the one that is calculated when the data arrives - this is when the cyclic redundancy check error will appear,


All of the above is true, didnt write it myself copied it from a good friends post. It is probably the data itself that is corrupted. Doesnt mean the data is gone. Try running a disk defrag, if that doesnt work try copying it to a cd/dvd and see if you get the same error. If you dont, flash your bios. This should explain your problem, if it doesnt follow up with me, email address is kustom42 at gmail.com.

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1 Answer

Re-installing xp


A cyclic redundancy check (CRC error) is an error checking program that is used to verify data and can be caused by hardware or software. The most common causes are bad CD disk, hard drive or memory. To run diagnostics press and hold the <Fn> key while powering the system on. This will run the Dell Diagnostics. Examine the Windows CD and see if there are any scratches or smudges on the media, try another CD disk if you have one.



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The file on the hard drive is corrupt, run scandisk and fix the file error, but the video is likely a loss

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A CRC error (Cyclic Redundancy Check) is a data corruption error. This basically means that the data read from the media did not match what was expected to be read by the software. I would say that it is most likely that the source media that you are copying/reading from is corrupted. It is also possible that the destination media that you are copying to could be the source of the problem. If it is a hard drive try running scan disk or other disk repair software, if it is a CD - clean or replace the CD. David Millier Advance Camera Repair

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