Error Extracting Zip File
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41 Last updated: 28 Oct, 2014 Print Email to friend Views: 114181 About CRC Errors A CRC error indicates that some data in your Zip file (.zip or error 1 in extracting from zip file r .zipx) is damaged. CRC stands for cyclic redundancy check. It is a calculation error 0x80004005 while extracting zip file made from all the data in a file to insure accuracy. When you add a file to a Zip
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file, WinZip calculates a CRC value for the file and saves the value in the Zip file. When you later extract the file from the Zip file, WinZip calculates the CRC of
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the extracted file and compares it to the value stored when the file was zipped. If these two CRC values do not match, the file that was extracted does not match the original file, and WinZip will display a CRC Error message. When the data in a Zip file is damaged, it may not be possible to extract all of the files from extracting a zip file on mac the Zip file correctly. Damaged data can affect the entire Zip file, multiple files, or just one file. Why CRC Errors Occur There are many possible causes for data damage. Among the most common is a transfer error when downloading a Zip file from the internet. Such an error can introduce invalid data into a Zip file. Some other possible causes include exposure of media to excessive temperatures or magnetic fields, cross linked disk sectors, and mechanical problems with disk drives. What to do if a CRC Error Occurs The best solution to the problem of a damaged Zip file is to try to obtain another copy of the file. For example, use your backup copy of the file or get a new copy from the original source. If you obtained the Zip file by downloading it, then downloading it again will almost always solve the problem. A "Last Resort" for CRC Errors If you cannot download a new copy of the Zip file, obtain a replacement disk, or use a backup copy, you may still be able to recover some of your files, and even save portions
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this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link http://discussions.virtualdr.com/showthread.php?242926-RESOLVED-Error-extracting-zip-files above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. Results 1 to 5 of 5 Thread: [RESOLVED] Error extracting .zip files Tweet Thread http://kb.winzip.com/kb/entry/35/ Tools Show Printable Version Email this Page… Subscribe to this Thread… Search Thread Advanced Search Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode January 4th, 2010,01:36 PM #1 zip file Syzich View Profile View Forum Posts Virtual Resident Join Date Apr 2004 Posts 683 [RESOLVED] Error extracting .zip files Yesterday, I downloaded some .zip files and wasn't having any problems extracting them. After I downloaded the last file I intended to download for the day, I went to extract it and that's when I ran into a problem. It began to extract just fine, extracting zip file then I got an error message that said: "An unexpected error is preventing the operation. Make a note of this error, which might be useful if you get additional help to resolve this problem: Error 0x80004005: Unspecified Error" I've received Path Too Long errors before when extracting .zip files before, so I thought that this might have been the same thing. When I got those, I just manually copied the file by dragging and dropping. Though, when I tried that this time, I still got the same error. I'm fairly certain that this file is not corrupt, either. Like I said, I didn't run into this error until I tried to extract the last file I intended to download. To test, I redownloaded the file I had just downloaded before the one that initially gave me the error. I got the error with the file I redownloaded as well. I think I should point out that the .zip files include a folder with two files inside in the folder. When attempting to extract the .zip, the folder inside the .zip and the smaller of the two files are extracted just fine,
181502 The Zip file format, which is open source, has a specific structure defined in the .ZIP Application Note. By definition, the information recorded in the two Zip file headers should be equivalent. In other words, information recorded about a file in the Central directory should match the information recorded about the same file in the Local directory. This information should also be accurate. Due to the nature of an open source format, it is very possible for you to receive a Zip file where a simple header issue exists. This header issue may be a minor mistake caused by the application or process used to create the Zip file. However innocent the mistake may seem, WinZip will treat all header inconsistencies, inacurate data, and incorrect extensions as possible security risks and report to you that the Zip file is corrupt. You may want to try to repair your Zip file at some point, as some of these matters can be corrected using a Zip file fix routine. In other cases when the data in a Zip file is damaged, it may not be possible to fix the Zip file and you will not be able to extract all of the files correctly, if at all. Damaged data can affect the entire Zip file, multiple member files, or just one member file. There are many possible causes for data damage. Among the most common is a transfer error when downloading a Zip file from the internet. Such an error can introduce invalid data into a Zip file. Some other possible causes include exposure of media to excessive temperatures or magnetic fields and mechanical problems with disk drives. The best solution to the problem of a damaged Zip file is to try to obtain another copy of the file. For example, use your backup copy of the file or get a new copy from the original source. If you obtained the Zip file by downloading it, then downloading it again may solve the pro