Need advice on how to recover 5.25" floppy
Re: Need advice on how to recover 5.25" floppy
The resulting file from -i6 is d64 regardless of the suffix.
Re: Need advice on how to recover 5.25" floppy
it's there some way to save it in .img format?
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Re: Need advice on how to recover 5.25" floppy
Image format is almost the same as d64! Both is basically a sector-for-sector copy of a disk...
683 sectors of 256 byte resulting in 174848 byte which is the length of a d64 file.
2880 sectors of 512 byte resulting in 1474 560 byte which is the lengt of a standard img file (1,44 MBdisk)
There are no aditional information stored in theese files (nothing that isn't on the disk itself...).
So, if you wan't it in image format you can rename .d64 to .img
David
683 sectors of 256 byte resulting in 174848 byte which is the length of a d64 file.
2880 sectors of 512 byte resulting in 1474 560 byte which is the lengt of a standard img file (1,44 MBdisk)
There are no aditional information stored in theese files (nothing that isn't on the disk itself...).
So, if you wan't it in image format you can rename .d64 to .img

David
Last edited by brightcaster on Fri Dec 27, 2019 9:38 am, edited 1 time in total.
Re: Need advice on how to recover 5.25" floppy
Ok perfect, thanks for the explanationbrightcaster wrote: ↑Sat Nov 09, 2019 10:16 am Image format is almost the same as d64! Both is basically a sector-for-sector copy of a disk...
683 sectors of 256 byte resulting in 174848 byte which is the length of a d64 file.
2880 sectors of 512 byte resulting in 1474 560 byte which is the lengt of a standard img file (1,44 MBdisk)
There are no aditional information stored in theese files (othing that isn't on the disk itself...).
So, if you wan't it in image format you can rename .d64 to .img
David

I have another question, i'm just curious about this disk (it's probably a MFM disk, not related to c64 disks):
https://filebin.net/wuw31kto54w81vev
It seems unformatted but looking at the graphs it seems there is something, it's not noisy like unformatted tracks. Have you any idea of what it is? Physically the surface of the disk seems brand new (no scratches).
It's not an important disk, i'm just curious.
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- Joined: Fri Nov 08, 2013 10:48 pm
Re: Need advice on how to recover 5.25" floppy
Just a quick shot: Could be a 80 track disk reading with a 40 track drive! As there are shades of a 15 sectors per track format maybe a 1,2Mbyte DOS Disk?
David
David
Re: Need advice on how to recover 5.25" floppy
I'm not sure if i understood your question, however this is the label on the disk:brightcaster wrote: ↑Fri Nov 22, 2019 8:53 pm Just a quick shot: Could be a 80 track disk reading with a 40 track drive! As there are shades of a 15 sectors per track format maybe a 1,2Mbyte DOS Disk?
David
https://i.imgur.com/Qj2yPxI.jpg
Re: Need advice on how to recover 5.25" floppy
That is a 1.2mb (96tpi/80track high density) floppy disk. You must read it using a 1.2mb 5.25" floppy drive. It will not read in a 360k (48tpi/40track low density) drive.
Re: Need advice on how to recover 5.25" floppy
Is there some way to write on a ibm dos floppy?
I tried the "WildeWutz" GUI but it says "supported file types: ADF, G64, IPF & STREAM", is there some way to write a .img file?
I tried the "WildeWutz" GUI but it says "supported file types: ADF, G64, IPF & STREAM", is there some way to write a .img file?
Re: Need advice on how to recover 5.25" floppy
There is a way to create raw stream files from standard nonprotected DOS disk .img imagefiles using HxCFloppy software and then writing from those using KryoFlux.
Re: Need advice on how to recover 5.25" floppy
I tried the conversion but it seems it's not working, it only writes a single track, and it seems it always write any track on the 1st track of the disk.
Is there a way to fix it and automatize the process? (also a batch script would be fine)
Here it's the log from WildeWutz:
Writing using default precomp factor...
C:\path\01.0.raw" -e81 -d0 -dd1 -w
Image name: C:\path
Image type: RAW
Image sides: 2
Image tracks: 42
Analysis time: 2.454 s
Side 0: td: 1, cf: off, data: 42, unformatted: 0, nfr: 0
Side 1: td: 1, cf: off, data: 42, unformatted: 0, nfr: 0
Filter mode: side -wg: 3, crosstalk -wk: 0[3]
Side mode: side -g: 2, td -k: 1, flip -wy: 0, flippy -y: 0
Write mode: bias -wb: 0, erase -we: 0
00.0 : Writing RAW