Search found 303 matches

by SomeGuy
Sat Mar 27, 2021 5:11 pm
Forum: Support
Topic: Drive speed problem
Replies: 5
Views: 349

Re: Drive speed problem

First of all "speed problems" reported by DTC have to do with the spindle motor. The linked thread has to do with the head step rate. Totally different things. There are a number of different possibilities: 1: There is "gunk" on the cookie surface, increasing friction between the...
by SomeGuy
Sun Mar 21, 2021 8:56 pm
Forum: Support
Topic: Error: Side number found is different from what it should be
Replies: 5
Views: 269

Re: Error: Side number found is different from what it should be

That attched screen shot show a disk with 80 tracks, not 40 tracks. So what disk was that? Double check with a known good double sided 5.25" disk of the same density and see if you get the same results. Could you post a Preservation Stream disk dump? That might help give some extra clues what i...
by SomeGuy
Thu Mar 18, 2021 7:14 pm
Forum: Dumping
Topic: Motorola VERSADOS 5.25" FD imaging
Replies: 5
Views: 220

Re: Motorola VERSADOS 5.25" FD imaging

Could you post the disk dump?

A mistmatch error would suggest a different sector size. That is typical when encoding differs.
by SomeGuy
Fri Mar 05, 2021 3:23 am
Forum: Dumping
Topic: Dumping Help
Replies: 7
Views: 192

Re: Dumping Help

The program (boom.exe) appeared to run and work in PCE when I ran it directly from the a: drive.

Although, when I tried to run the installer it complained that it was not the install disk.
by SomeGuy
Thu Mar 04, 2021 5:48 am
Forum: Dumping
Topic: Dumping Help
Replies: 7
Views: 192

Re: Dumping Help

The sectors on track 40 are FM encoded, and therefore can not be used by anything on a normal IBM PC. If you really wanted them in a PSI image, you would tell the PCE tools to decode track 40 by itself, as FM encoding rather than MFM and then merge the resulting PSI image with the existing PSI image...
by SomeGuy
Mon Feb 15, 2021 4:48 am
Forum: Dumping
Topic: Dumping and Emulation Issue
Replies: 15
Views: 370

Re: Dumping and Emulation Issue

PCE does not emulate a PCJr or Tandy 1000. Only a PC and XT. I believe this disk would also freeze on a genuine PC or XT because it is expecting a PCJr. mr.vince, The PSI format used by PCE is a sector format. That means overlapping sectors are separated out in to individual sectors. The number of s...
by SomeGuy
Tue Jan 19, 2021 4:46 pm
Forum: Support
Topic: 5.25 floppies image profile
Replies: 24
Views: 1753

Re: 5.25 floppies image profile

This decodes fine to mfm sector image with 40 tracks, 10 sectors , 512 byte. But the last 6 tracks on side 2 are missing or not formatted! Actually, they are formatted and contain the same blank data. They appear to decode OK with the PCE tools and the Kryoflux software. There is just some noise or...
by SomeGuy
Thu Jan 14, 2021 4:53 pm
Forum: Support
Topic: 5.25 floppies image profile
Replies: 24
Views: 1753

Re: 5.25 floppies image profile

In this case, it would be a good bet to start with a Preservation Stream File. That just records all of the raw signal from the drive. You can feed it back to the Kryoflux software or other tools later to decode a usable disk image using one of the other profiles. The nice thing about this is you do...
by SomeGuy
Tue Nov 17, 2020 11:05 pm
Forum: Support
Topic: Imaging an IDE hard drive with CHS addressing
Replies: 5
Views: 328

Re: Imaging an IDE hard drive with CHS addressing

First of all, IDE does not give access to flux-level information. It is all abstacted away behdind an I/O bus that recieves commands and hands you blocks of data. Earlier "MFM"/"RLL" hard drives were a different story. Most IDE to USB interfaces require LBA addressing instead of ...
by SomeGuy
Thu Oct 22, 2020 3:56 am
Forum: Support
Topic: Help Converting Kryo Raw to PSI for Sierra Images
Replies: 9
Views: 356

Re: Help Converting Kryo Raw to PSI for Sierra Images

OK, glad you got PCE working. That emulator is anything but easy to use. As for the 720k disk, make sure the target disk is not write protected, and if you are using a 1.44mb disk as 720k, make sure to cover the density hole. Also, most 3.5" drives ignore the Kryoflux's density setting, but mak...