Re: copying files with bad CRCs
- From: Frazer Jolly Goodfellow <no-spam@xxxxxxxxxxx>
- Date: Wed, 28 Jun 2006 21:23:40 GMT
"yawnmoth" <terra1024@xxxxxxxxx> wrote in
news:1151522531.450043.295570@xxxxxxxxxxxxxxxxxxxxxxxxxxxx:
Say I wanted to copy a *.avi video file (xvid encoded; it's
currently on a hard drive)) but was told (by Windows XP) I
couldn't because it had a bad CRC. Is there a way I could sorta
just copy it in spite of the bad CRC?
The reason I ask is because xvid (and MPEG1/2/4, in general) is
a rather resiliant format. A single corrupt byte may just mean
that one frame is bad. If every 20th frame is a keyframes (ie.
i-frames, or whatever), this means that only 20 - (frame
position) % 20 frames are bad. If there are 100,000+ frames,
having less then 20 bad frames is fairly insignificant. Yet
it's significant enough for Windows to deny you access to the
whole file?
So, anyway, I think, in some cases, Windows' seeming refusal to
let you do anything with corrupt files is inappropriate. Is
there any work-around that I'm not aware of?
Thanks!
I've no direct experience of it, but it is claimed to do what you
need...
http://www.roadkil.net/unstopcp.html
"Product Description
Recovers files from disks with physical damage. Allows you to copy
files from disks with problems such as bad sectors, scratches or
that just give errors when reading data. The program will attempt
to recover every readable piece of a file and put the pieces
together. Using this method most types of files can be made useable
even if some parts were not recoverable in the end. "
.
- References:
- copying files with bad CRCs
- From: yawnmoth
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