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Thread: data recovery from degraded cds

  1. #1
    BioLeo NNTP User

    Default data recovery from degraded cds


    I'm trying to recover data (jpgs mostly) from ~8 yr old CDR's that have
    apparently degraded. Trying to mount them I get a
    Hal.Device.Volume.UnknownFailure: error on 2 different computers. Can
    anyone recommend a technique or app to pull whatever data is salvageable
    off of them? I'm new to OpenSUSE but not to Linux in general and I
    don't mind getting down to the terminal or compiling apps so it doesn't
    have to be point and click. Thanks!
    Leo


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  2. #2
    ken yap NNTP User

    Default Re: data recovery from degraded cds


    You could try to copy off the image to ISO files using ddrescue (search
    for it), and then do whatever forensics are needed on the ISO file. It's
    pretty grim though if the directory on the CD is not readable.


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  3. #3
    giaslamo NNTP User

    Default Re: data recovery from degraded cds


    BioLeo;1901035 Wrote:
    > I'm trying to recover data (jpgs mostly) from ~8 yr old CDR's that have
    > apparently degraded. Trying to mount them I get a
    > Hal.Device.Volume.UnknownFailure: error on 2 different computers. Can
    > anyone recommend a technique or app to pull whatever data is salvageable
    > off of them? I'm new to OpenSUSE but not to Linux in general and I
    > don't mind getting down to the terminal or compiling apps so it doesn't
    > have to be point and click. Thanks!
    > Leo

    You could try photorec. I've used it to successfully recover
    accidentally deleted photos from my harddrive.
    This is the description from the photorec man page.
    "PhotoRec is file data recovery software designed to recover lost
    files including video,
    documents and archives from Hard Disks and CDRom and lost
    pictures (Photo Recovery) from digi‐
    tal camera memory. PhotoRec ignores the filesystem and goes
    after the underlying data, so
    it'll work even if your media's filesystem is severely damaged
    or formatted. PhotoRec is safe
    to use, it will never attempt to write to the drive or memory
    support you are about to recover
    lost data from."


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  4. #4
    tempusfugit NNTP User

    Default Re: data recovery from degraded cds


    I recommend a look at dvdisaster. It's a complete toolset to recover and
    protect cds/dvds and has a nice gui (if you can stand _not_ getting your
    hands dirty at the terminal )


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