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Morpheus
Registered: Feb 2004
Posts: 152 |
Get files back on a formatted disk
I wonder, what was the name of that program were you could get files back on a formatted disk. I need to rescue some files before they fade away... |
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
the best dir editor is a machine code monitor able to read and write sectors. no restrictions :) |
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iopop
Registered: Dec 2001
Posts: 317 |
Disk Wizard 2.0 by H.J Rottkemper also have the deformat function.
That is if you have softformatted the disk. Far too many times Ive done @n:<filename> instead of @s:<filename> and all times disk wizard have saved me. |
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Morpheus
Registered: Feb 2004
Posts: 152 |
Quote: Disk Wizard 2.0 by H.J Rottkemper also have the deformat function.
That is if you have softformatted the disk. Far too many times Ive done @n:<filename> instead of @s:<filename> and all times disk wizard have saved me.
Can you send me the program?
TDJ: Can you send me Dir make-up? |
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Krill
Registered: Apr 2002
Posts: 2970 |
Quote: the best dir editor is a machine code monitor able to read and write sectors. no restrictions :)
yet, nobody could be arsed to search and analyze the t/s links of a whole disk manually to restore a directory =) |
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
@Krill: there is atleast one program for that. i remember an old 1986 basic tool called "backtracker" or something. it took ages... i remember speeding it up with a basic compiler, but still it used standard serial routines so it was very slow. |
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TDJ
Registered: Dec 2001
Posts: 1879 |
If I remember correctly, dir make up did just that .. analyzed the disk and came up with a number of possible files. I still have 1 or 2 disks with the results of such an action .. |
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j0x
Registered: Mar 2004
Posts: 215 |
I also did a program like that recently, after some tamper-protected program cleared a dir-sector on me. I was lazy and did it in C to work on a .d64 image on a PC.
IIRC it tells you the first block (i.e. an unreferenced block) of each chain, and reports any chain collisions (i.e. two or more sectors each referring to the same sector). I believe sector loops (of arbitrary length) are also detected. On a disk containing colliding sector chains, any program that doesn't allow the user to pick the correct chain is likely to fail.
Since it was done as a quick hack to save me the trouble of going through the disk manually, it's not particularly user friendly.... (*ahem*) E.g. you have to reconstruct the dir sector(s) yourself from the info provided by the program.
If you're able to convert the disk to a .d64 file, it may be of some use, though. |
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iopop
Registered: Dec 2001
Posts: 317 |
Quote: Can you send me the program?
TDJ: Can you send me Dir make-up?
You can grab Disk Wizard 2.0 here;
http://www.ftp.funet.fi/pub/cbm/c64/diskutil/directory/Disc%20W.. |
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