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7-Zip CRC Error

Discussion in 'General Software' started by saknid, Dec 21, 2012.

  1. saknid

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    I made 7zip file making it PASSWORD PROTECTED to make it little secure on my External Hard Drive,

    before some days the file was working all ok, But since last night when I try to open the file to upload some pics it do start running process and extract till 20 files and then shows a ERROR message as "Cyclic Redundancy Error" and stop the process.

    OS used- Windows 7 32 bit
    Hardware- Segate 500 Gb External HDD

    7Zip

    File type which are zipped

    25 MP3 Files
    56 JPG/JPEG files
    2 WPX files
    2 WMA Files

    PLEASE HELP ME OUT...
  2. natr0n

    natr0n

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    That usually means the hard drive has errors, as in it's failing.

    Try another usb cable to confirm if still crc errors.
  3. jboydgolfer

    jboydgolfer

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    I had a similar issue, I was extracting directly from the USB drive and I got an error, I'm unsure if it was the Same error, but none the less an error.

    I just moved the file to my desktop, and it Extracted just fine, which backs up (natr0n's) suggestion, Mine too turned out to be a Bad drive.(windows said it required repair)

    Good Luck
  4. saknid

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    Ok I will try the same and then will let you know Thank you in advance but If I will get again the same problem I will ask you guys again that file is important and I don't have backup for that
  5. saknid

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    I do the both But still I did'nt get it working...Even I try to copy it but when I move it in the HDD only it do work ok but when I try to cut/copy to the Internal Disk it deny the process after copying half of it...

    Now seriously guy's please give me some solution to deal with this...

    thank you in advance...
  6. natr0n

    natr0n

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    put the drive in the fridge for an hour and then try to get your data off it.

    Ive done this in the past with drives , the cold effects the drive in a positive way usually works most of the time.

    beware of condensation though.
  7. saknid

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    @natr0n Are you really serious...Means really should I try this...ok I will...

    Apart from that any thing else any s/w that can do extraction from that file
  8. natr0n

    natr0n

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    yes im serious. try winrar also, to extract the files if haven't used already
  9. saknid

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    Nope it is also not working...While I am still looking over net for any solution
  10. m&m's

    m&m's

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    1. Try a to repair your disk. Right click --> Properties --> Tools --> click Check Now... under Error-checking
    [​IMG]

    2. Open cmd.exe as administrator, write CHKDSK x: where x is your drive letter. If errors are found write CHKDSK x: /r.

    I don't if it will work since your file looks corrupted and if it is, good luck to open it.
    Crunching for Team TPU
  11. saknid

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    k I do use both (Even I thing both are same one from cmd and another from GUI) but it is not working even some videos do run clear now but the file is still not opening

    Is there any software which can restore the CRC value or can Repair the same file please guy's give me some solution plz...:banghead::respect:
  12. Aquinus

    Aquinus Resident Wat-man

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    If the CRC is incorrect that means data is corrupted. CRC errors tend to reflect a failing drive. You may be in trouble because in order to correct a CRC error you need to correct that part of the file that is corrupted and since you have no other copy of the content, you're in trouble.

    It's like saying (albeit very basically,) I stored a number on my computer. Now that number is wrong and I was to get it back but I have no idea what that number is. Simple fact is, it's gone considering CRC determines data integrity. CRC does offer some level of protection against data corruption but there must have been a significant number of errors to begin with to make it do this.

    I usually get CRC errors on damaged optical disks or failing hard drives.

    There is no replacement for maintenance and proper monitoring of your drives in mission critical environments.
  13. Chevalr1c

    Chevalr1c

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    Maybe it is as simple as some RAM issue related to some wonky BIOS setting? I could be wrong about that though.

    When (de)compressing files a slight instabillity can be enough to corrupt the archive, although some archive types are more sensitive to this than others (LZO for example is very sensitive, I do not know whether this is also the case with 7-zip).
    Crunching for Team TPU
  14. Aquinus

    Aquinus Resident Wat-man

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    Maybe it's the version of 7-ZIP? I don't think this will really help but it's worth giving a try. I really think it's the file though. Does it throw the CRC error at the same point every time you try decompressing it? If it does, it's data corruption for sure. If it's random, it could be memory but I would imagine that a lot of other things would be going haywire at that point. I don't think 7-ZIP is as touchy as LZO.
    Chevalr1c says thanks.
  15. lyndonguitar

    lyndonguitar I play games

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    lol, No don't put it in the freezer yet, you're not even sure if it is really the HDD failing..
  16. Aquinus

    Aquinus Resident Wat-man

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    He is using 7-Zip, not Zip. :wtf:
    Agreed. Try checking out your SMART logs to see if your drive really is failing. CrystalDiskInfo does a pretty good job reading SMART through USB and RAID on Windows.
  17. saknid

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    @Aquinus Yes sir each and every time on the same spot and on the same file.
  18. Aquinus

    Aquinus Resident Wat-man

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    You're archive is corrupted. I can say that with 100% certainty if it's giving you the error at the same spot every time. I'm afraid there is very little you can do about this. It is possible that it might not have been compressed properly to begin with, but I would still check the SMART logs on your USB drive. If your drive is fine, the file is just corrupted and unfortunately, there is very little you can do about that. :(
  19. saknid

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    @Aquinus though I did'nt use the s/w u asked but yes My Ex. HDD do failing at some points

    while I was checking for the SMART...

    In that case what should I do also there are some video files which are not playing is it also because of the same problem...


    Help me out...and provide s/w for repairing 7zip file nt any zip as that is not working...
  20. Aquinus

    Aquinus Resident Wat-man

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    This isn't a matter of repairing the archive. You've lost data. Simple as that and that is why you're getting the CRC error. Without a working copy or a checksum or anything to describe the state of the archive before the corruption, there is practically nothing you or anyone else can do.

    Just post up the SMART logs and we'll work from there.
  21. saknid

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    @Aquinus Man don't say that I will die for sure is there any option/software which can do the extraction by leaving/bypassing some files ....
  22. saknid

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    Ok I will post the SMART log and as much I understand the Log drive do have the problem...

    ryt nw m in ofc so will post it by tomorrow...

    If the HDD have the problem then would be possible to retrieve data
  23. Aquinus

    Aquinus Resident Wat-man

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    Yes, but it isn't sounding like that is the case. It seriously sounds like your archive is foobar.
  24. saknid

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    Will post the log then decide that other wise I am gone for sure...
  25. saknid

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    @Aquinus I am posting the pic of SMART...

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