The HD floppies use a different magnetic composition on the physical media. While you can 'sometimes' get a HD disk to work, they don't work well due to the difference. I have never paid attention to the "hard sectors" portion of the manual so that was new information to me. But that being said, I can confirm that regular 720k disks, re-formatted in the TPDD2 have worked great in my drive. Of the 30 or so I have continually used, I have only had one problem, but that was due to my own stupidity.
Kurt On Mon, Mar 18, 2019, at 9:36 AM, daveishmael wrote: > Thanks Kurt, > I tried formatting a typical 1.44MB disk "just for grins" and it didn't > format. The TPDD2 manual specifies 80 tracks 160 "hard sectors", so are you > sure these eBay disks will work. I remember the "old days" using > hard-sectored 5-1/4" disks and compatibility was a HUGE issue. > Dave > > > > Sent from my T-Mobile 4G LTE Device > > -------- Original message -------- > From: Kurt McCullum <[email protected]> > Date: 3/18/19 8:59 AM (GMT-08:00) > To: [email protected] > Subject: Re: [M100] DVI > > The TPDD2 along with the TPDD1 require regular SSDD disks which are hard to > find. But any DSDD (720k) disk will work fine. > > Here is a link for the elusive single sided 3.5" floppy disks. But they are > not cheap and the double sided can be had for much less. > > https://www.ebay.com/itm/3-5-inch-1DD-Single-Sided-Double-Density-floppy-disks-Rare-BASF-brand-50-pk/292635570200?hash=item4422707018:g:3E0AAOSwC-JbRAVE:sc:USPSPriority!92131!US!-1 > > Kurt > > On Mon, Mar 18, 2019, at 8:44 AM, daveishmael wrote: >> Hello all, >> Speaking of 3.5" disks, is there a source for the hard-sectored disks for >> the Portable Disk Drive 2??? The RS P/N is 26-415 or 26-416. The drive works >> fine as does its boot disk, but extra disks seem to be unobtanium? >> Dave >> >> >> >> Sent from my T-Mobile 4G LTE Device >> >> -------- Original message -------- >> From: Jesse Huyett <[email protected]> >> Date: 3/18/19 8:27 AM (GMT-08:00) >> To: [email protected] >> Subject: Re: [M100] DVI >> >> Hello All, >> George: I think your question is for Mike? I asked about using a Gotek in >> the DVi while he posted pictures of a single slot dual floppy drive. >> >> And Mike: Is there an advantage to having access to a 3.5" floppy? I assumed >> the controller would limit this to 360k. >> >> Regards >> >> On Sat, Mar 16, 2019 at 2:23 PM George Rimakis <[email protected]> wrote: >>> Hi Jesse, >>> >>> Is there any more information accompanying those mods that are pictured? >>> >>> Best, >>> ~George >>> >>> On Mar 16, 2019, at 1:42 PM, Mike Stein <[email protected]> wrote: >>>> ----- Original Message ----- >>>> From: Jesse Huyett >>>> To: [email protected] >>>> Sent: Saturday, March 16, 2019 4:08 AM >>>> > Hello All, >>>> > Has anyone tried a Gotek/ HxC in the DVI? >>>> >>>> A Gotek might be a challenge but FWIW 3.5" drives work quite well. >>>> >>>> <DVI35e.JPG> >>>> >>>> With a little futzing you could have both ;-) >>>> <DVIduale.JPG> >
