[Coco] .dsk format

Tue Mar 10 15:10:12 EDT 2009

What does it take to get David Keil's Emulator?
I have Win98 and a 3.5 in. drive on the Win98 system.
I have coco3 and Drive wire2 w/cable (Cloudp9 products)
with a Cloud9 hard drive controller w/2 CF units.
I still don't know how to transfer files downloaded on the Internet
and get the files on my coco3. I will be traveling from Bradenton,
Florida(about 50 miles South Tampa) to attend the Fest.

So at 81 years old, I meed a lot of help and it will be greatly
appreciated

John C.

On Tue, 10 Mar 2009 13:36:48 -0400 mike delyea <mdelyea at gmail.com>
writes:
> You can do it if you have a 360k floppy drive on a windows 98 
> machine
> OR a 3.5" drive on the W98 machine and on the coco.  I use David
> Keil's emulator because it has virtual to real drive drivers.  From
> the documentation:
> 
> Depending on compatibility of your PC you should be able to 
> read/write
> single density & double density 5.25" and 3.5" disks in 360k and 
> 720k
> PC floppy drives (commonly known as low/double density drives, DD).
> You should be able to read/write double density 5.25" and 3.5" 
> disks
> in 1.2meg and 1.44meg PC floppy drives (commonly known as high 
> density
> drives, HD).
> 
> Eight fixed sector length REAL floppy specification virtual disks 
> are
> supplied to read/write 256 byte/sector floppies in a PC's A: and B:
> drives.
> 
> FDD0_360.DSK          Reads 35/40 track disks on a PC A: 360k (DD) 
> drive.
> FDD1_360.DSK         Reads 35/40 track disks on a PC B: 360k (DD) 
> drive
> FHD0_360.DSK         Reads 35/40 track disks on a PC A: 1.2meg (HD) 
> drive.
> (double steps head)
> FHD1_360.DSK         Reads 35/40 track disks on a PC B: 1.2meg (HD) 
> drive.
> (double steps head)
> FHD0_720.DSK         Reads 80 track disks on a PC A: 1.2meg (HD) 
> drive.
> FHD1_720.DSK         Reads 80 track disks on a PC B: 1.2meg (HD) 
> drive.
> F350_720.DSK         Reads 80 track 3.5" disks on a PC A: 1.44meg 
> (HD) drive.
> F351_720.DSK         Reads 80 track 3.5" disks on a PC B: 1.44meg 
> (HD) drive.
> 
> Eight variable sector length REAL floppy specification virtual 
> disks
> are supplied to read/write 128-1024 byte/sector floppies in a PC's 
> A:
> and B: drives. These specification disks are slower than the fixed
> length ones and should only be used on disks un-readable with the
> fixed length specification disks.
> 
> VDD0_360.DSK         Reads 35/40 track disks on a PC A: 360k (DD) 
> drive.
> VDD1_360.DSK         Reads 35/40 track disks on a PC B: 360k (DD) 
> drive
> VHD0_360.DSK         Reads 35/40 track disks on a PC A: 1.2meg (HD) 
> drive.
> (double steps head)
> VHD1_360.DSK         Reads 35/40 track disks on a PC B: 1.2meg (HD) 
> drive.
> (double steps head)
> VHD0_720.DSK         Reads 80 track disks on a PC A: 1.2meg (HD) 
> drive.
> VHD1_720.DSK         Reads 80 track disks on a PC B: 1.2meg (HD) 
> drive.
> V350_720.DSK         Reads 80 track 3.5" disks on a PC A: 1.44meg 
> (HD) drive.
> V351_720.DSK         Reads 80 track 3.5" disks on a PC B: 1.44meg 
> (HD) drive.
> 
> I can confirm that it is possible to write a 360k floppy disk (or 
> 180k
> for DECB) on a 5.25" 1.2mb disk drive.  I have successfully written
> both OS-9 and Nitros-9 .dsk images to floppy using this method, 
> also
> Donkey Kong and several other games.  I seem to recall that I had 
> to
> fiddle around in the BIOS with the 1.2mb drive's settings to make 
> it
> 720k (not really sure - its been a while) and I had to try a couple 
> of
> the above listed .dsk images to get it to work.  It took a bit of
> experimentation.  Also, I might have formatted the disk on the coco
> first.
> 
> You put the .dsk image that you want to copy in drive 0 and the
> virtual driver .dsk image in drive 1 and just backup 0 to 1.
> 
> If you can't get it to work let me know and I'll fire up old 98 and
> run through the procedure again to get the correct steps.
> 
> On Tue, Mar 10, 2009 at 1:04 PM, Tom Seagrove 
> <tjseagrove at writeme.com> wrote:
> > Am I right in assuming that with either coconet or drivewire I can 
> access a
> > vitual .dsk and do a disk copy to a real disk on my coco system?
> >
> > -----Original Message-----
> > From: coco-bounces at maltedmedia.com 
> [mailto:coco-bounces at maltedmedia.com] On
> > Behalf Of Roger Taylor
> > Sent: Tuesday, March 10, 2009 12:18 PM
> > To: CoCoList for Color Computer Enthusiasts
> > Subject: Re: [Coco] .dsk format
> >
> > At 09:10 AM 3/10/2009, you wrote:
> >>I do not know of a utility that runs on the coco end which will
> >>allow you to mount a .dsk image as a "real" disk.
> >
> > Are you sure he's not wanting to know about DriveWire or CoCoNet?
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >>Bill <cwgordon at carolina.rr.com> wrote: Pardon what may be a silly
> >>question, but can files saved in the .dsk format
> >>be downloaded and put back on their original condition using a 
> coco?
> >>
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