Re: The Name of the disk (Was: Disk imaging with IMD - question

http://www.retrotechnology.com/herbs_stuff/drive.html is more detailed than the On 8/10/17 1:32 PM, Tom Gardner via cctalk wrote: > Me too - great rant.

Re: Disk imaging progress (was: Disk imaging with IMD - question)

Hmmm. Sounds like I should get the original drives from the VCF warehouse at Infoage. Thanks Chuck. Rich Sent from Verizon/AOL Mobile Mail On Saturday, August 12, 2017, Chuck Guzis via cctalk wrote: On 08/12/2017 05:30 PM, Richard Cini via cctalk wrote: > OK, so

Re: Disk imaging progress (was: Disk imaging with IMD - question)

On 08/12/2017 05:30 PM, Richard Cini via cctalk wrote: > OK, so this is interesting. Since the CW was working using the test > previously described, > > I tried imaging the non-critical disks. None would read successfully. So, I > moved > > everything to the other machine with the better

Re: Disk imaging progress (was: Disk imaging with IMD - question)

On 8/12/17, 4:31 PM, "cctalk on behalf of Fred Cisin via cctalk" wrote:     On Sat, 12 Aug 2017, Richard Cini via cctalk wrote: >> I have four “non critical” disks from this system – says >> “Utilities”,

Re: Disk imaging progress (was: Disk imaging with IMD - question)

On Sat, 12 Aug 2017, Richard Cini via cctalk wrote: The Catweasel MK1 and the QT242 combination seems to work well. I took the 8” MSDOS disk I created this morning, made an image of it, wrote it back to a blank disk and it booted. Running Norton Disk Doctor on it resulted in no reported

Disk imaging progress (was: Disk imaging with IMD - question)

…continuing… The Catweasel MK1 and the QT242 combination seems to work well. I took the 8” MSDOS disk I created this morning, made an image of it, wrote it back to a blank disk and it booted. Running Norton Disk Doctor on it resulted in no reported errors. I have four “non critical” disks

Re: Disk imaging with IMD - question

I spent a bit of time on this yesterday. I have four QT242s (all were NOS but two had broken plastic disk guides). It turns out that the only drive that works is one of the ones with broken plastic. So, I did a little swapping, connected it to my PC/AT and I now have MS-DOS 6.22 on an 8”

Re: Disk imaging with IMD - question

So based on this entire thread I should probably hunt down some Shugart 850s to be safe. Rich Sent from Verizon/AOL Mobile Mail On Friday, August 11, 2017, Christian Corti via cctalk wrote: On Thu, 10 Aug 2017, camiel.vanderhoeven--- via cctalk wrote: > My workhorse

Re: Disk imaging with IMD - question

On Thu, 10 Aug 2017, camiel.vanderhoeven--- via cctalk wrote: My workhorse 8" drives are some Ye-Data half-height ones. I still have about a dozen of them as NOS. I believe they were made in 1993. If you mean the Y-E DATA YD-180, well, they are QumeTrack 242 ;-) Christian

RE: The Name of the disk (Was: Disk imaging with IMD - question

Me too - great rant. Thanks Tom -Original Message- From: Mark J. Blair [mailto:n...@nf6x.net] Sent: Thursday, August 10, 2017 9:56 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: The Name of the disk (Was: Disk imaging with IMD - question > On Aug 9, 2017, at 12

Re: Disk imaging with IMD - question

Quoting Al Kossow via cctalk : On 8/10/17 9:25 AM, camiel.vanderhoeven--- via cctalk wrote: My workhorse 8" drives are some Ye-Data half-height ones. I still have about a dozen of them as NOS. Glad they work out for you. Fairlight people like them, so I've been

Re: The Name of the disk (Was: Disk imaging with IMD - question

> On Aug 9, 2017, at 12:08, Fred Cisin via cctalk > wrote:> > [...] > >I'm keeping your rant as reference >material. Thanks! I second that! Fred ranting is a good thing ;). Generally there are a number of good posts here that go into my archive folder for future

Re: Disk imaging with IMD - question

www.vcfed.org/forum/showthread.php?55277-Selecting-an-8-quot-floppy-drive for someone else's opinion of the Qume PsOS On 8/10/17 9:57 AM, Al Kossow via cctalk wrote: > > > On 8/10/17 9:25 AM, camiel.vanderhoeven--- via cctalk wrote: > >> My workhorse 8" drives are some Ye-Data half-height

Re: Disk imaging with IMD - question

On 8/10/17 9:25 AM, camiel.vanderhoeven--- via cctalk wrote: > My workhorse 8" drives are some Ye-Data half-height ones. I still have about > a dozen of them as NOS. Glad they work out for you. Fairlight people like them, so I've been giving them away to them. I wont' try to recover anything

Re: The Name of the disk (Was: Disk imaging with IMD - question

> On Aug 9, 2017, at 12:08, Fred Cisin via cctalk wrote: > > [...] > I'm keeping your rant as reference material. Thanks! The Tandy Portable Disk Drive (TPDD) for the Model 100 series is one of the odd-ball "rare" configurations: 3.5", 40 track (later, 80 track on

Re: Disk imaging with IMD - question

Quoting Chuck Guzis via cctalk : On 08/10/2017 01:29 AM, Christian Corti via cctalk wrote: That really depends on the drive. Ok, I think the Qume is "smart" enough to inhibit any write to side 1 on a SS media. But OTOH, many other drives are just happy doing anything

Re: Disk imaging with IMD - question

On 08/10/2017 01:29 AM, Christian Corti via cctalk wrote: > That really depends on the drive. Ok, I think the Qume is "smart" > enough to inhibit any write to side 1 on a SS media. But OTOH, many > other drives are just happy doing anything that you request (e.g. the > BASF drives I also use).

Re: Disk imaging with IMD - question

On 8/10/17 1:29 AM, Christian Corti via cctalk wrote: > On Wed, 9 Aug 2017, Chuck Guzis wrote: >> I'll try again--it doesn't matter if the Qume 242 (I've got one) I have a pretty strong dislike for the Qume drives, the 242 in particular seems to like to eat the top side of media. The design of

Re: Disk imaging with IMD - question

On Wed, 9 Aug 2017, Richard Cini wrote: Will do. These 242 drives are NOS and I have several. I'll swap them too. One more note about QumeTrack 242 drives: I have the problem that the head load is very sticky (on both of my drives). I had to clean and oil it to make it working again. But

Re: Disk imaging with IMD - question

On Wed, 9 Aug 2017, Chuck Guzis wrote: I'll try again--it doesn't matter if the Qume 242 (I've got one) is a DSDD drive if you're using SS media. Peek inside the drive and you'll see that there are *two* index sensors--one for single-sided and the other for double-sided media. Unless you've

Re: Disk imaging with IMD - question

@classiccmp.org> wrote: - Original Message - From: "Richard Cini via cctech" <cct...@classiccmp.org> To: "Discussion: On-Topic Posts Only" <cct...@classiccmp.org> Sent: Tuesday, August 08, 2017 8:54 PM Subject: Disk imaging with IMD - quest

Re: Disk imaging with IMD - question

On 08/09/2017 03:06 PM, Fred Cisin via cctalk wrote: > Yes. > It is not clear whether the issue is with the disks, or with the > hardware setup. Again, maybe I'm reading too much into the comments, but I thought that Rich had formatted a floppy using IMD and verified using the Analyze function.

Re: Disk imaging with IMD - question

Will do. These 242 drives are NOS and I have several. I'll swap them too. Lots to do this weekend! Rich Sent from Verizon/AOL Mobile Mail On Wednesday, August 9, 2017, Chuck Guzis via cctalk wrote: There's also the possibility that the drive alignment is so far out

Re: Disk imaging with IMD - question

I think I have a Cromemco 16FDC laying around. Might be able to put a quick S100 Z80 system together. Rich Sent from Verizon/AOL Mobile Mail On Wednesday, August 9, 2017, Fred Cisin wrote: On Wed, 9 Aug 2017, rich.c...@verizon.net wrote: > Hmmm. I might have. CW in my

Re: Disk imaging with IMD - question

On Wed, 9 Aug 2017, Chuck Guzis via cctalk wrote: There's also the possibility that the drive alignment is so far out of whack that you're not seeing the data on the SCP disks. This is unlikely in drives that haven't been diddled with, but unless you bought the drive NOS, you don't know that.

Re: Disk imaging with IMD - question

There's also the possibility that the drive alignment is so far out of whack that you're not seeing the data on the SCP disks. This is unlikely in drives that haven't been diddled with, but unless you bought the drive NOS, you don't know that. Grab a known-good 8" floppy--the format doesn't

Re: Disk imaging with IMD - question

On Wed, 9 Aug 2017, rich.c...@verizon.net wrote: Hmmm. I might have. CW in my storage area. Good idea. I don't know the version of if I have the software. Let me look later. Great idea. alternatively, do you have ANY computer with 8" drive and WD 179x controller? It's not too big a deal to

Re: Disk imaging with IMD - question

On 08/09/2017 01:47 PM, Fred Cisin via cctalk wrote: > That is SO compatible with the NEC 765 chips that I'm going to CALL it > an NEC chip. > I wonder if has the same "flash-blind" behavior following index? > I'll go out on a limb saying that I think that it will NOT give you any > chaange from

Re: Disk imaging with IMD - question

Hmmm. I might have. CW in my storage area. Good idea. I don't know the version of if I have the software. Let me look later. Great idea. Rich Sent from Verizon/AOL Mobile Mail On Wednesday, August 9, 2017, Fred Cisin wrote: On Wed, 9 Aug 2017, Mike Stein via cctalk

Re: Disk imaging with IMD - question

On Wed, 9 Aug 2017, Mike Stein via cctalk wrote: Interesting reading here under disk formats: https://en.wikipedia.org/wiki/86-DOS Sounds like there were two Tarbell controllers, single and double density but both single-sided ? NO https://en.wikipedia.org/wiki/86-DOS#Disk_formats includes a

Re: Disk imaging with IMD - question

On 08/09/2017 01:29 PM, Richard Cini via cctalk wrote: > I don't have the screen print handy but if you look on Dave Dunfield's site > under Disk/Software he has a controller registry. I'm using the Adaptec > AHA-1522A which uses the National DP8437AV chip. That should work with most common

Re: Disk imaging with IMD - question

On Wed, 9 Aug 2017, Richard Cini via cctalk wrote: Thanks Fred. The Adaptec controller I'm using has a NatSemi controller and passes all IMD tests. I have an SBC floating around with a WD37xx chip so maybe I'll try that this weekend. That is SO compatible with the NEC 765 chips that I'm going

Re: Disk imaging with IMD - question

I don't have the screen print handy but if you look on Dave Dunfield's site under Disk/Software he has a controller registry. I'm using the Adaptec AHA-1522A which uses the National DP8437AV chip. Rich Sent from Verizon/AOL Mobile Mail On Wednesday, August 9, 2017, Chuck Guzis via cctalk

Re: Disk imaging with IMD - question

Thanks Fred. The Adaptec controller I'm using has a NatSemi controller and passes all IMD tests. I have an SBC floating around with a WD37xx chip so maybe I'll try that this weekend. Rich Sent from Verizon/AOL Mobile Mail On Wednesday, August 9, 2017, Fred Cisin via cctalk

Re: Disk imaging with IMD - question

essage - From: "Richard Cini via cctalk" <cctalk@classiccmp.org> To: <cctalk@classiccmp.org> Sent: Wednesday, August 09, 2017 2:52 PM Subject: Re: Disk imaging with IMD - question > Thanks Chuck. The Gazelle uses the Tarbell DD controller which uses a 1793 > which I b

Re: Disk imaging with IMD - question

On 08/09/2017 12:41 PM, Fred Cisin via cctalk wrote: > My naming convention is flawed. I think that at one point Western > Digital made an "NEC compatible" controller, that isn't what I call > "wd-style" Yup, the WD37C65. Anyone need any? I've got a tubeful that I'm never going to use. Used

Re: Disk imaging with IMD - question

On Wed, 9 Aug 2017, Mike Stein via cctalk wrote: Interesting reading here under disk formats: https://en.wikipedia.org/wiki/86-DOS Sounds like there were two Tarbell controllers, single and double density but both single-sided ? Also sounds like the FAT12 disk formats were not quite MS-DOS

Re: Disk imaging with IMD - question

If you can use IMD to format both FM and MFM at 500Kbps on your 242--and "Analyze" reads the format okay, your SCP disks aren't probably standard IBM 3740 or System/3 type diskettes. They could be in a proprietary recording format, such as Intel MMFM or Futuredata GCR. On Wed, 9 Aug 2017,

Re: Disk imaging with IMD - question

: "Richard Cini via cctalk" <cctalk@classiccmp.org> To: <cctalk@classiccmp.org> Sent: Wednesday, August 09, 2017 2:52 PM Subject: Re: Disk imaging with IMD - question > Thanks Chuck. The Gazelle uses the Tarbell DD controller which uses a 1793 > which I believe

The Name of the disk (Was: Disk imaging with IMD - question

The structure used on most diskette tracks is based on an IBM design (3740, etc.), and was referred to as "IBM format". BUT, the general public think that "IBM" means the machines that followed the 5150, so "IBM format" is oft misconstrued to mean PC. To avoid ambiguity, I sometimes call

Re: Disk imaging with IMD - question

Thanks Chuck. The Gazelle uses the Tarbell DD controller which uses a 1793 which I believe is 3742 and s/34 compatible. Rich Sent from Verizon/AOL Mobile Mail On Wednesday, August 9, 2017, Chuck Guzis via cctalk wrote: On 08/09/2017 10:57 AM, Richard Cini via cctalk

Re: Disk imaging with IMD - question

On 08/09/2017 10:57 AM, Richard Cini via cctalk wrote: > "DON'T ASSUME..." AS THEY SAY ON TV. I'M OK WITH THE ADDITIONAL CLARITY. > SINCE YOU HAVE A WORKING 242, WOULD YOU MIND CONFIRMING THE JUMPER SETTINGS > FOR ME? JUST TRYING TO ELIMINATE AS MANY POTENTIAL ERROR POINTS. I had a look and a

Re: Disk imaging with IMD - question

See below. Hopefully inline works. I'm not shouting, just using caps. Rich Sent from Verizon/AOL Mobile Mail On Wednesday, August 9, 2017, Chuck Guzis via cctalk wrote: On 08/09/2017 09:52 AM, Richard Cini via cctalk wrote: > It's funny -- I didn't see the original

Re: Disk imaging with IMD - question

On 08/09/2017 09:52 AM, Richard Cini via cctalk wrote: > It's funny -- I didn't see the original reply from Bill to this > message. > > I am aware of the track differences and I thought Dos would format > it but just slam the head for the last three tracks. No such luck. It > actually complains

Re: Disk imaging with IMD - question

Bill -- the drive and disks are double-sided double density. Are you saying that's quad density? I may try a different host setup again. I have five different computers that passed the testfdc program with varying levels of success, although none with single-density. Rich Sent from

Re: Disk imaging with IMD - question

NOTE - I was able to make a bootable 8" DOS 6.22 disk even though it slammed the last three tracks, on my imaging computer. The computer thought it was writing to a 1.2M 5 1/4 disk. BUT you're saying a quad density SS disk. I never tried that and if you say it does not work then I can't dispute

Re: Disk imaging with IMD - question

It's funny -- I didn't see the original reply from Bill to this message. I am aware of the track differences and I thought Dos would format it but just slam the head for the last three tracks. No such luck. It actually complains about the disk from the beginning. The Qume 242 is a DSDD

Re: Disk imaging with IMD - question

On 08/09/2017 01:41 AM, william degnan wrote: > How about booting into dos and just formatting a disk that way? Go back and read what I wrote, Bill. If single-sided media is being used, DOS formatting will fail as there is no single-sided high-density format available. Of course, if

Re: Disk imaging with IMD - question

On Aug 9, 2017 1:34 AM, "Chuck Guzis via cctalk" wrote: > > Quick question, Rich--what kind of media are you using to test by > formatting to 1.2MB? > > If they're SS media (as indicated by the position of the index > aperture), your drive will probably barf if you try to

Disk imaging with IMD - question

Guys –     I’m working on a restoration project for VCF that requires imaging 8” disks (both SSSD and DSDD, mostly for the Tarbell controller) but I’m having trouble with it reading disks. So, I wanted to run through what I’ve done and see if I’m missing anything. It took