Search found 348 matches

by SomeGuy
Mon Nov 22, 2021 1:47 am
Forum: Support
Topic: Setup for MFM 5 1/4" DD 360K
Replies: 21
Views: 1003

Re: Setup for MFM 5 1/4" DD 360K

In practice if the cable is short, lack of termination should not cause a major problem, but that may not always be the case. I've had at least one drive act oddly without termination. "Resistor Networks" are very common and can be found at various parts places. according to the manual, it...
by SomeGuy
Sat Nov 20, 2021 4:33 pm
Forum: Dumping
Topic: Need help recover 8 bad sectors on a 800KB HFS Mac floppy from the 90's
Replies: 6
Views: 270

Re: Need help recover 8 bad sectors on a 800KB HFS Mac floppy from the 90's

Pushing the head down too much, yes that can potentially damage a floppy. But in your case the suggestion is not to push the head down but rather forward or back - so you would actually push/pull on a part of the head assembly other than the head itself. That should not damage a disk. Some of those ...
by SomeGuy
Fri Nov 19, 2021 3:58 pm
Forum: Support
Topic: Setup for MFM 5 1/4" DD 360K
Replies: 21
Views: 1003

Re: Setup for MFM 5 1/4" DD 360K

Ug, I've got a couple of those drives. They suck. Half the time they won't even spin cleaning disks. If you have not already done so, take the belts off and gently clean them. Also make sure the motor pulley and spindle are clean and not oily. You may also find that you need to "exercise" ...
by SomeGuy
Fri Nov 12, 2021 5:37 pm
Forum: Dumping
Topic: Need help recover 8 bad sectors on a 800KB HFS Mac floppy from the 90's
Replies: 6
Views: 270

Re: Need help recover 8 bad sectors on a 800KB HFS Mac floppy from the 90's

Araaaag! Damaged Macintosh disks! Just saying, I've been down this road a number of times, and it is always a headache. PC style floppy drives are not designed to read these, so the signal must be in good strong condition for a Kryoflux to read them. First of all, what specific brand/models of drive...
by SomeGuy
Sat Nov 06, 2021 7:49 pm
Forum: Support
Topic: The streaming device reported missing index - no disk in drive
Replies: 20
Views: 716

Re: The streaming device reported missing index - no disk in drive

I'm still not convinced that is "incompatible", but at this point trying a different floppy drive and cable is a good idea. One can never have too many floppy drives. :) If it can read, write, and format on a PC then it should work with the kryoflux. I can also think of no good reason why ...
by SomeGuy
Tue Nov 02, 2021 12:51 am
Forum: Support
Topic: The streaming device reported missing index - no disk in drive
Replies: 20
Views: 716

Re: The streaming device reported missing index - no disk in drive

A floppy drive by itself should not cause a PC-style computer to reset. Although if the 486 PSU is borderline on its way out, that could be one symptom. I'd look closer at both the 486 floppy controller as well as software on the machine. Anyway, back to the kryoflux. If the drive reads, writes, and...
by SomeGuy
Thu Oct 28, 2021 1:28 pm
Forum: Support
Topic: The streaming device reported missing index - no disk in drive
Replies: 20
Views: 716

Re: The streaming device reported missing index - no disk in drive

You say the drive works in MS-DOS - besides reading, have you also tested writing and formatting?

If all three work in DOS, then it should work with a Kryoflux.

When it is hooked up to the Kryoflux, a disk is in the drive, and the drive is accessed, does the motor spin?
by SomeGuy
Wed Oct 20, 2021 6:26 pm
Forum: Dumping
Topic: Converting Stream preservation files to PSI / TD0
Replies: 3
Views: 360

Re: Converting Stream preservation files to PSI / TD0

Well, here is an example of converting a DSDD MFM disk to IMG format: pfi track00.0.raw disk1.pfi pfi disk1.pfi -R 1 -r 500000 -p decode pri disk1.pri pri disk1.pri -p decode mfm disk1.psi -f -v psi disk1.psi disk1.img psi disk1.psi -L > disk1.txt First you just convert directly to a PCE Flux Image ...
by SomeGuy
Sun Oct 10, 2021 2:59 pm
Forum: Dumping
Topic: How to handle boot sector viruses in floppy disk images?
Replies: 5
Views: 188

Re: How to handle boot sector viruses in floppy disk images?

As far as virus scanners go, I recommend McAffee Virus Scanner/Vshield for DOS. It does not usually leave extra garbage on disks like some other scanners, and it is very reliable about detecting and cleaning boot sector viruses. It was also distributed as uncrippled shareware, sou you can still find...
by SomeGuy
Sun Oct 10, 2021 4:02 am
Forum: Dumping
Topic: How to handle boot sector viruses in floppy disk images?
Replies: 5
Views: 188

Re: How to handle boot sector viruses in floppy disk images?

It used to be that virus scanners could be temporarily disabled or instructed to ignore certain files. I don't know if that is still possible, with how locked down newer "modern" computers are. If you can pry your file out of the grips of the virus scanner, then you can use an emulator wit...