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| Thread ID: 79237 | 2007-05-13 12:15:00 | Recovering data from crook floppy | Billy T (70) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 549548 | 2007-05-13 12:15:00 | Hi Team I was transferring old archive data from floppy to HDD ready to burn to CD and have found one floppy that won't allow access to a particular folder . I had already copied one file from that folder without problems then it spat the dummy . Norton Disk Doctor is unhelpful but I can read all other files on the disc using Ztree . However, when Ztree hits that folder it reports a CRC error . It is not critical, but I have nothing to lose by trying, so is there any freeware out there that can read faulty disks and recover data known to be present and in otherwise good order? Windows just tells me the disk isn't formatted, but Ztree is almost there in that it reports an error then skips the faulty file/folder and reads everything else . I need something that operates at a more fundamental level if such exists, something like Spinrite perhaps, but I don't want to lay out that much money over a floppy or two . One or two more of my old archive disks may be faulty so it's worth the effort to experiment . I've tried it in another floppy drive BTW and that didn't help . Cheers Billy 8-{) |
Billy T (70) | ||
| 549549 | 2007-05-13 13:25:00 | This may do the job: www.roadkil.net |
zqwerty (97) | ||
| 549550 | 2007-05-13 19:16:00 | Ive used this in the past www.snapfiles.com |
beama (111) | ||
| 549551 | 2007-05-14 02:23:00 | Ooooookay........... UnstopCP pulled everything off the floppy except the contents of the one folder that I wanted. So far so good, that stuff is safe, but it didn't even see the problem folder. Restoration saw the folder but didn't find the files. It said that the folder (or disk possibly) was unformatted. However, even Windows can do that. It is curious that the contents of just one folder are inaccessible, but now I am looking for a more invasive perhaps "heavy duty" disk scanner that will ride roughshod over the folder structure and look hard at the disk contents. I'm out of my depth here but is it a sector by sector copy I want? Any ideas? Cheers Billy 8-{) |
Billy T (70) | ||
| 549552 | 2007-05-14 03:41:00 | Don't think spinrite can do floppies... it's probably not possible, not without special hardware although norton ghost does sector-by-sector copies, it only works on hard drives | Agent_24 (57) | ||
| 549553 | 2007-05-14 04:58:00 | I used to use NU, because it could grab sectors. That's a long ago version of what is now NDD. The restriction is that you generally don't get the contents of bad sector --- the BIOS code seems to zero everything oif there's a CRC error. Is it the directory which is corrupted? If you can read that, and note down the sectors you want, the *nix programme dd would be useful. The command dd if=/dev/fd0 of=recovered.dat bs=512 count=X skip=Y would make a file of X sectors after skipping Y sectors. dd if=/dev/fd0 of=diskcopy.dat bs=512 would make a biggish file containing everything on it, probably again with blank "bad" sectors. |
Graham L (2) | ||
| 549554 | 2007-05-14 06:45:00 | Billy try as a last resort and I do mean LAST RESORT run a scandisk on that floppy 1 of two results 1 repairs damaged tracks or 2 makes disk totally unaccessable may the force be with you |
beama (111) | ||
| 549555 | 2007-05-14 07:02:00 | Perhaps you could make an image of the disk and run scandisk on that. Making a dd file from the disk, then swapping the "if" and "of" (input_file, output_file) arguments to write a copy to a new disk would let you do that. Scandisk/Chkdsk are not data recovery tools; they just "fix" the file system, often losing files in the process. |
Graham L (2) | ||
| 549556 | 2007-05-14 11:41:00 | Well, I've tried a whole bunch of recovery utilities, of which Disk Investigator seemed to be the best, but even if they manage to get to that darned folder, they all fall down on a CRC error. Some fall down sooner! I have searched for longer than I care to think for a freeware CRC error corrector and although some programs appear to offer that feature, they usually have a large price tag attached, the download is cleverly hidden somewhere behind some other program they are trying to flog off to the masses, or the writer's english make you worry about what else might come in the package. I thought that these hard-core bit by bit sector by sector recovery programs didn't care about data corruption (which would surely throw up a CRC error?) but it seems that they are all a bit weak-kneed and woosey when the going gets tough. If I wasn't so pig-headed I'd have flagged this ages ago but it is now annoying me. If anybody knows a way around CRC errors I'd love to hear about it, but for now I'm off to get a life. Cheers Billy 8-{) :xmouth: |
Billy T (70) | ||
| 549557 | 2007-05-14 12:23:00 | Try isobuster it may do enough to get what you want without buying it. I have not tried it on a floppy but it may work. www.download.com I can't find an older version which I am sure would do the job for free, you only had to pay to do sophisticated operations such as extracting audio from Game CD's etc. |
zqwerty (97) | ||
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