Difference between revisions of "Files:CRC-verified files"

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m (the p2p part doesn't belong in a anidb wiki; zidrav & quickpar wiki link added)
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'''CRC-verified files''' are files that have been tested on file corruption. If you download a file, then you should always make a CRC check on it (provided that a CRC hash was shipped with the file), to prove that your file is a perfect match for the original file. If the CRC check of a file fails, the file may have been changed or your file has been corrupted by the transfer. As a result, the corrupt file (e.g. videos, zip etc) might not be able to open/play or be of any use at all. If you have a corrupt file, you should either redownload it completely or request a patch for it, via a tool such as [http://sourceforge.net/projects/zidrav/ ZIDRAV].
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'''CRC-verified files''' are files that have been tested on file corruption. If you download a file, then you should always make a CRC check on it (provided that a CRC hash was shipped with the file), to prove that your file is a perfect match for the original file. If the CRC check of a file fails, the file may have been changed or your file has been corrupted by the transfer or was bad to begin with. (It happens more and more for groups to spread crc corrupt files.) As a result, the corrupt file (e.g. videos, zip etc) might not be able to open/play or be of any use at all. If you have a corrupt file, you should either redownload it completely or request a patch for it, via a tool such as [[Zidrav]] or [[QuickPar]].
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There are P2P clients (eMule/eDonkey2000/BitTorrent) that already have an inbuilt file verification. For example, BitTorrent immediately checks each downloaded chunk against the SHA1 hash in the metadata file - if it fails the hash check, then that chunk is redownloaded automatically.
 
  
 
[[Category:Definitions]]
 
[[Category:Definitions]]

Revision as of 16:52, 9 June 2005

CRC-verified files are files that have been tested on file corruption. If you download a file, then you should always make a CRC check on it (provided that a CRC hash was shipped with the file), to prove that your file is a perfect match for the original file. If the CRC check of a file fails, the file may have been changed or your file has been corrupted by the transfer or was bad to begin with. (It happens more and more for groups to spread crc corrupt files.) As a result, the corrupt file (e.g. videos, zip etc) might not be able to open/play or be of any use at all. If you have a corrupt file, you should either redownload it completely or request a patch for it, via a tool such as Zidrav or QuickPar.