Someone on Fesse Bouc just found a sealed box of SS/SD 8" floppies in
their garage.
Most FB types are too young to know 8" disks existed, of course.
Someone suggested punching a notch in them and using both sides.
Was that even possible on 8" disks?
(TBH single-sided actually-floppy floppies ar
On 8/31/22 13:33, Liam Proven via cctalk wrote:
Someone on Fesse Bouc just found a sealed box of SS/SD 8" floppies in
their garage.
Most FB types are too young to know 8" disks existed, of course.
Someone suggested punching a notch in them and using both sides.
Was that even possible on 8"
I've never heard of anyone making 8" Flippy Diskettes.
There were many "notchers" to make flippy 5 1/4" diskettes and even a
drive or two that were designed to "flip" the disk.
The problem with "flipping" as diskette is that both the write protect
notch AND the index/sector hole had to be fli
> Someone suggested punching a notch in them and using both sides.
> Was that even possible on 8" disks?
Sure, but you have to punch an offset index hole:
https://imgur.com/a/6vdR6NE
That's a single-sided flippy 8" diskette (it's also hard-sector but that's not
really relevant). 8" diskettes
On Thu, Sep 1, 2022 at 4:10 AM Liam Proven via cctalk
wrote:
> Someone on Fesse Bouc just found a sealed box of SS/SD 8" floppies in
> their garage.
>
> Someone suggested punching a notch in them and using both sides.
>
> Was that even possible on 8" disks?
>
On 5.25" diskettes punching a notch
Are they IBM preformatted? If so they could work in someone's RX01/RX02.
C
On 9/1/2022 7:10 AM, jim stephens via cctalk wrote:
On 8/31/22 13:33, Liam Proven via cctalk wrote:
Someone on Fesse Bouc just found a sealed box of SS/SD 8" floppies in
their garage.
Most FB types are too young to k
I just happen to have 2 RX02's hungry for diskettes 😁
BTW, the greaseweazle can format RX01 format diskettes quite nicely.
On 9/1/2022 9:36 AM, Chris Zach via cctalk wrote:
Are they IBM preformatted? If so they could work in someone's RX01/RX02.
C
On 9/1/2022 7:10 AM, jim stephens via cctalk
> BTW, the greaseweazle can format RX01 format diskettes quite nicely.
Any PC that can do single-density can (with ImageDisk or similar), as well as
basically all CP/M boxes with 8" drives. That's how I format new RX01 media.
RX01 can of course be up-converted to RX02 format with XXDP.
Thanks,
jim stephens wrote:
> Sad day when AOL changed to CDs and you then had to make
> coasters or trash them.
My wife and our neighbor use them as reflectors to scare birds away from
her garden. We finally ran out of the AOL CDs and are now working on my
backlog of MSDN CDs. I keep them stacked on
On 8/31/22 13:33, Liam Proven via cctalk wrote:
> Someone on Fesse Bouc just found a sealed box of SS/SD 8" floppies in
> their garage.
>
> Most FB types are too young to know 8" disks existed, of course.
>
> Someone suggested punching a notch in them and using both sides.
>
> Was that even poss
On 01/09/2022 14:31, Kenneth Gober via cctalk wrote:
On 5.25" diskettes punching a notch to enable use of the second side
worked due to 2 factors:
First, the index hole was commonly unused on 5.25" systems so it
didn't matter that the index hole was in the wrong place when the
diskette was flipp
On Thu, Sep 01, 2022 at 08:20:21AM -0500, Mike Katz wrote:
> I've never heard of anyone making 8" Flippy Diskettes.
>
I did it in high school. Poor job with a hand punch but worked. I also have a
box of 3M disks that are officially flippy. They came punched to be able to
use both sides. Label sa
On Thu, 1 Sep 2022, Pete Turnbull via cctalk wrote:
On 01/09/2022 14:31, Kenneth Gober via cctalk wrote:
On 5.25" diskettes punching a notch to enable use of the second side
worked due to 2 factors:
First, the index hole was commonly unused on 5.25" systems so it
didn't matter that the index h
And commodore 154x drives.
On September 1, 2022 12:39:02 PM EDT, Pete Turnbull via cctalk
wrote:
>On 01/09/2022 14:31, Kenneth Gober via cctalk wrote:
>> On 5.25" diskettes punching a notch to enable use of the second side
>> worked due to 2 factors:
>>
>> First, the index hole was commonly unu
Here's a photo of a stock Memorex 8" "flippy".
Un-modified--this is the way they were sold.
--Chuck
https://i.imgur.com/3VnrazS.jpg
This is because, like Apple ][ drives, they used GCR encoding and looked
for sync bytes on the disk rather than implementing additional hardware to
look for the index hole.
Sellam
On Thu, Sep 1, 2022 at 10:08 AM geneb via cctalk
wrote:
> On Thu, 1 Sep 2022, Pete Turnbull via cctalk wrote:
>
> >
On Wed, 31 Aug 2022, Liam Proven via cctalk wrote:
Someone on Fesse Bouc just found a sealed box of SS/SD 8" floppies in
their garage.
Most FB types are too young to know 8" disks existed, of course.
Someone suggested punching a notch in them and using both sides.
Was that even possible on 8" dis
On Wed, 31 Aug 2022, Liam Proven via cctalk wrote:
Someone on Fesse Bouc just found a sealed box of SS/SD 8" floppies in
their garage.
Most FB types are too young to know 8" disks existed, of course.
About 3 decades ago, my assistant (Bob Fink) came up with an advertising
campaign for XenoCopy
Sad day when AOL changed to CDs and you then had to make
coasters or trash them.
On Thu, 1 Sep 2022, Alan Frisbie via cctalk wrote:
My wife and our neighbor use them as reflectors to scare birds away from
her garden. We finally ran out of the AOL CDs and are now working on my
backlog of MSDN C
On Thu, 1 Sep 2022, Sellam Abraham via cctalk wrote:
This is because, like Apple ][ drives, they used GCR encoding and looked
for sync bytes on the disk rather than implementing additional hardware to
look for the index hole.
Sellam
Well, it's not really just the GCR that does that.
On the IBM
I'm sitting here with a customer's 8" floppy in front of me. The
manufacturer's label is simply "Diskette" on both front and back with
the usual "Diskette No." legend and "Side 1" or "Side 2" respectively.
The curious thing is that this disk is not only a "flippy", but has a
*third* index apertur
On Thu, 1 Sep 2022, Chuck Guzis via cctalk wrote:
I'm sitting here with a customer's 8" floppy in front of me. The
manufacturer's label is simply "Diskette" on both front and back with
the usual "Diskette No." legend and "Side 1" or "Side 2" respectively.
The curious thing is that this disk is n
On 9/1/22 17:45, Fred Cisin via cctalk wrote:
> How do they handle the issue of how the drive knows whether it is SS,
> DS, or SS flippy? Or is it assumed that that problem is for the host FDC?
> (some DS drives had both SS and DS index sensors, so that they could
> read SS in the DS drive, and s
On 9/1/22 18:43, Mike Katz wrote:
> Taking my memory back to the early 1980's and the Western Digital floppy
> disk controller chip family (177X single density and 179X double
> density). I wrote the 6809 drivers for Gimix Flex. The controller chip
> used the index pulse for sector zero position
On 9/1/22 18:43, Mike Katz wrote:
Taking my memory back to the early 1980's and the Western Digital floppy
disk controller chip family (177X single density and 179X double
density). I wrote the 6809 drivers for Gimix Flex. The controller chip
used the index pulse for sector zero position and fo
> It turns out that some 8" drives can be set to separate the sector holes
> from the index hole (separate output pins for index and sector). Doing
> so, gives you what amounts to a soft-sectored floppy, regardless of what
> the physical object is.
The flippy 8" diskette I linked a picture of thi
On 9/1/22 19:22, Fred Cisin via cctalk wrote:
> But, how about a WD TRACK READ with the index pulse masked?
Well, okay, but I never found that to be very useful, because to achieve
correct byte alignment, you need one of the standard address marks to
get the data separator working right, which few
On Thu, Sep 1, 2022 at 5:45 PM Fred Cisin via cctalk
wrote:
>
> How do they handle the issue of how the drive knows whether it is SS, DS,
> or SS flippy? Or is it assumed that that problem is for the host FDC?
> (some DS drives had both SS and DS index sensors, so that they could read
> SS in th
How do they handle the issue of how the drive knows whether it is SS, DS,
or SS flippy? Or is it assumed that that problem is for the host FDC?
(some DS drives had both SS and DS index sensors, so that they could read
SS in the DS drive, and such a drive is going to see TWO index pulses with
this
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