Search found 40 matches

by pieroandreini
Tue Aug 25, 2020 12:46 pm
Forum: Support
Topic: Write back dumped disk
Replies: 15
Views: 585

Re: Write back dumped disk

Thanks so much SomeGuy!!
by pieroandreini
Fri Aug 21, 2020 6:36 pm
Forum: Support
Topic: Write back dumped disk
Replies: 15
Views: 585

Re: Write back dumped disk

Thank you for the tip!!!
I used another the drive and it magically works !!!
Now I will try to clean up the other ten images as well.
I took a look at PFI.EXE, I think that is the utility used, can you tell me the parameters to use?
by pieroandreini
Thu Aug 20, 2020 10:43 pm
Forum: Support
Topic: Write back dumped disk
Replies: 15
Views: 585

Re: Write back dumped disk

Thank you SomeGuy, unfortunately, even if now I can write back the raw image, it still doesn't work. Could it be because the recording format is non-standard? (288 bytes sector etc etc). I also tried to decode the duplicated floppy with TOOL-2.EXE which, although not finding errors, takes a long tim...
by pieroandreini
Tue Aug 18, 2020 1:04 pm
Forum: Support
Topic: Write back dumped disk
Replies: 15
Views: 585

Re: Write back dumped disk

thank you @SomeGuy! unfortunately I cant try because it give me this error in both my computers: iMac:~ piero$ dtc -w -Wi4 -we1 -f./Downloads/mill_6th_read_converted/track Image name: ./Downloads/mill_6th_read_converted/track Image type: RAW Image sides: 2 Image tracks: 77 libc++abi.dylib: terminati...
by pieroandreini
Tue Aug 11, 2020 10:53 pm
Forum: Support
Topic: Write back dumped disk
Replies: 15
Views: 585

Re: Write back dumped disk

I tested wildewutz tool but I could see that unlike what happens on MacOS using command line DTC, writing is much slower and takes place in three different cycles. Although I have set Max Track 76, using -we2 (wipe) the head is slammed to track 82, and in this case, since the writing occurs in three...
by pieroandreini
Tue Aug 11, 2020 10:11 pm
Forum: Support
Topic: Write back dumped disk
Replies: 15
Views: 585

Re: Write back dumped disk

Searching for some useful info I found this document:
http://www.bitsavers.org/components/sta ... _Jun82.pdf
May I suppose to use precompensation for track 27 (or 26 if the first track is 0) ?
by pieroandreini
Tue Aug 11, 2020 8:04 pm
Forum: Support
Topic: Write back dumped disk
Replies: 15
Views: 585

Re: Write back dumped disk

may I retrieve values for precompensation and bias somehow? As an example may I read back written disk to understand which values are correct? I tried wipe but the head goes until track 82 and I don't want to take the risk of damaging or misaligning the drive. For sure I will try wildewutz tool. May...
by pieroandreini
Mon Aug 10, 2020 2:57 pm
Forum: Support
Topic: Write back dumped disk
Replies: 15
Views: 585

Re: Write back dumped disk

I tried but unluckily it want work... I done it with the following command:

dtc -w -Wi4 -we1 -f./Desktop/NEC_Aligned/mill_ok/track

Computer start booting than appear "LOAD ERROR 26"
by pieroandreini
Sat Aug 08, 2020 9:34 pm
Forum: Support
Topic: Write back dumped disk
Replies: 15
Views: 585

Write back dumped disk

Thanks to ZrX and his tool, and Mark Odgen disktools (https://github.com/ogdenpm/disktools) I was able to decode several 8 "floppies dump written with a sector byte of 288 bytes. Now I would like to be able to write them back to floppy and being impossible to do it with a PC I would like to do it wi...
by pieroandreini
Mon Jul 27, 2020 8:16 pm
Forum: Support
Topic: Texas DS990/1 Dump
Replies: 29
Views: 1069

Re: Texas DS990/1 Dump

Thanks to everybody for the big support