KryoFlux Support Forums

There was/is a commercial program running on dos which works with theese floppies. So the data format must be WD1772 compatible and the kryoflux hardware can read anything that was written with that controller...

https://www.giebler.com/#kdm

David

Thanks for the pictures! Well, what shall I say. Theese holes are more or less home made! You can see that some of them are not exactly in the right position, some are marked with a pencil, and some of the floppies are labeld as single sided. So the additional holes are not made by the factory. Also...

Whow, that's something really new for me. I have never ever seen any hardsectored 5,25" floppies with 2 index holes in the sleeve jacket! Are there any hints for the manufacturer or type on the label?

Hardsectored disks can't be flippy disks! The Index information was absolutely nesseccary on the original drives to allocate sector positons but was not available on the flip side due to the missing second hole in the sleeve! So nothing could be written to the second side by flipping the disk...

Once again I have to correct myself! It's not a matter of inverted signals with the IBM PS2 drives but a change in position of pullup resistors. The PS2 floppy drives have some pullup resistors on board which are usually found on the controllers side. So they may work with some modification.... http...

As far as I remember IBM inverted some control signals! So it's not done with a simple adapter or twisting some wires...

David

It's the HxCFloppyEmulator Tool... https://hxc2001.com/download/floppy_drive_emulator/HxCFloppyEmulator_soft.zip https://hxc2001.com/download/floppy_drive_emulator/index.html It doesn't matter if you don't have the Hxc hardware! You can load and visualize the KryoFlux data just by loading the first ...

It's getting slightly worse instead of better! I would recommend to stop cleaning! This is a visual output of the first attempt: http://davidkrause.de/First.png And this is your new attempt after the intense cleaning: http://davidkrause.de/Second.png As you can see from the red dots it is no more cl...

It looks as if this has been covered allready:

viewtopic.php?f=3&t=1293&p=11912

If you are on linux, you'll find a batch-file which will do it for you at the end of the thread....

David

Unfortunately the DOS tool can't decode the files from the third disk, as the directory usually is located on the second track which contains no valid data....

David