On 1/9/23 22:31, Fred Cisin wrote:
>
> A little quick speculation, but not determinable without the system, .
> . .
> The Teac FD55F was a 96tpi "720K" drive at 300 RPM
> The Teac FD55G was a "1.2M" drive. 360RPM
> The FD55GF was both, and there were several variants, with different
> jumpers,
On 2023-01-10 07:31, Fred Cisin via cctalk wrote:
On 1/9/23 21:16, nico de jong via cctalk wrote:
Hello Chuck
Speaking of old floppies, when I was busy converting floppies (I've
now been retired for 10 years) I frequently had problems reading some
5.25" disks, but only on specific drives.
On 1/9/23 21:16, nico de jong via cctalk wrote:
Hello Chuck
Speaking of old floppies, when I was busy converting floppies (I've
now been retired for 10 years) I frequently had problems reading some
5.25" disks, but only on specific drives. Those disks came from IBM
systems, probably S/3.
I
On 2023-01-10 07:14, Chuck Guzis via cctalk wrote:
On 1/9/23 21:16, nico de jong via cctalk wrote:
Hello Chuck
Speaking of old floppies, when I was busy converting floppies (I've
now been retired for 10 years) I frequently had problems reading some
5.25" disks, but only on specific drives.
On 1/9/23 21:16, nico de jong via cctalk wrote:
> Hello Chuck
>
> Speaking of old floppies, when I was busy converting floppies (I've
> now been retired for 10 years) I frequently had problems reading some
> 5.25" disks, but only on specific drives. Those disks came from IBM
> systems, probably
Hello Chuck
Speaking of old floppies, when I was busy converting floppies (I've now
been retired for 10 years) I frequently had problems reading some 5.25"
disks, but only on specific drives. Those disks came from IBM systems,
probably S/3.
I cannot be sure that the solution holds, but it
On 1/9/23 11:56, Zane Healy via cctalk wrote:
> At this point in time, this is advisable for almost any magnetic media
> any of us would be working with. Though I’ll admit I have looked at a
> couple of the disks before imaging them, I’m trying to remember to
> image first, then read the image.
On 1/9/23 12:16, Dennis Boone via cctalk wrote:
> > Then I'd image the tape with Tapeimgr and see if I could figure out
> > what software was used. I've reverse-engineered a few, Retrospect and
> > one other, I think I uploaded it all to my Github.
>
> Phil's overall process is good, but you
> Then I'd image the tape with Tapeimgr and see if I could figure out
> what software was used. I've reverse-engineered a few, Retrospect and
> one other, I think I uploaded it all to my Github.
Phil's overall process is good, but you shouldn't use `dd` to image
tapes. It discards tape block
On 30/12/2022 20:17, John Herron via cctalk wrote:
This may be a larger conversation than I intend but how would you all
generally start if you ha backup tapes that you wanted to try and
read/restore?
Supposedly they're Amiga qic tapes. I'm a little worried about the
structural integrity of the
> On Jan 8, 2023, at 5:36 PM, Chris via cctalk wrote:
>
> Disks give errors, duh. Whatever you use to image a disk, use it as a first
> attempt, as that may be the ONLY chance to save the contents. People put a
> disk in the drive, do a directory scan, screw around some more. And then the
>
On Jan 9, 2023, at 8:02 AM, Doc Shipley via cctalk
wrote:
>
> On 1/8/23 23:21, Grant Taylor via cctalk wrote:
>> On 1/8/23 8:41 PM, Doc Shipley via cctalk wrote:
>>> I avoid Disk Utility like the plague.
>> Doc, will you please elaborate on why you avoid the Disk Utility (.app)?
>
> Short
On Jan 9, 2023, at 11:19 AM, Glen Slick via cctalk
wrote:
> https://www.usb.org/sites/default/files/usbmass-ufi10.pdf
>
> USB Mass Storage Class – UFI Command Specification Revision 1.0
> 4.10.2 Formattable Capacity Descriptors
> The UFI device supports the following capacity descriptors.
>
> On Jan 8, 2023, at 7:41 PM, Doc Shipley via cctalk
> wrote:
>
> On 1/8/23 19:29, Zane Healy via cctalk wrote:
>> When reading old floppies, how often is it advisable to clean the drive? I
>> managed the first 3.5” floppies no problem, I’m using a USB Floppy Drive
>> hooked up to my Mac
On Mon, Jan 9, 2023 at 12:19 PM Glen Slick via cctalk
wrote:
> On Mon, Jan 9, 2023, 10:23 AM Warner Losh via cctalk <
> cctalk@classiccmp.org>
> wrote:
>
> > On Sun, Jan 8, 2023, 6:29 PM Zane Healy via cctalk <
> cctalk@classiccmp.org>
> > wrote:
> >
> > Also, a normal USB Floppy drive can only
On Mon, Jan 9, 2023, 10:23 AM Warner Losh via cctalk
wrote:
> On Sun, Jan 8, 2023, 6:29 PM Zane Healy via cctalk
> wrote:
>
> Also, a normal USB Floppy drive can only handle 1.44MB formatted floppies.
> 720k might work (but there is nothing in the standards to describe this)
> and oddball
On 1/9/23 10:23, Warner Losh via cctalk wrote:
>
> Also, a normal USB Floppy drive can only handle 1.44MB formatted floppies.
> 720k might work (but there is nothing in the standards to describe this)
> and oddball formats are right out.
>
I've found that most 3.5" USB floppy drives also support
On Sun, Jan 8, 2023, 6:29 PM Zane Healy via cctalk
wrote:
> When reading old floppies, how often is it advisable to clean the drive?
> I managed the first 3.5” floppies no problem, I’m using a USB Floppy Drive
> hooked up to my Mac Laptop, I was able to image them using “Disk Utility”.
> The
On 1/8/23 23:21, Grant Taylor via cctalk wrote:
On 1/8/23 8:41 PM, Doc Shipley via cctalk wrote:
I avoid Disk Utility like the plague.
Doc, will you please elaborate on why you avoid the Disk Utility (.app)?
Short version is that the GUI Disk Utility hides too much of what
it's doing
If all you want is a mass storage, you can do what I did for my NC4000 computer.
I took a controller board from an XT and a ST506 drive( only 5 Megs but how am
I going to create
that much myself.
It is better than a floppy controller since it buffers a sector. The computer
can run as slow or
> On Jan 9, 2023, at 2:48 AM, Chuck Guzis via cctalk
> wrote:
>
> On 1/8/23 22:28, Chris via cctalk wrote:
>> If alcohol isn't a good idea, white vinegar or dilute ammonia could also
>> work. Ammonia is the world's best peneyrant as far as I'm concerned. But to
>> get into deep crevaces
On Mon, 9 Jan 2023 at 03:45, Ethan Dicks via cctalk
wrote:
> I have a memory of installing Windows 95 on a monochrome 386SX laptop
> w/4MB of RAM in August, 1995 at McMurdo because that's the equipment
> we had on hand when Win95 arrived on the continent. It was
> unpleasantly slow but it did
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