[Coco] Archiving a floppy disk collection

[Aaron Wolfe]

On Wed, Mar 21, 2012 at 8:42 PM, Willard Goosey <goosey at virgo.sdc.org> wrote:
> On Wed, Mar 21, 2012 at 07:13:49PM -0500, Allen Huffman wrote:
>
>>But, HDB-DOS won't work for all the tons of 40 and 42 track
>> RS-DOS disks I have since it is hard coded to 35 tracks only, right?
>
> Correct, and it is something of a problem.  Even I, the Man With the
> Unmodified Tandy Disk ROM, have collected my share of 40-track DECB
> disks (both real and virtual) over the years. And yes, they are a pain
> to deal with.
>

Is it possible to do a raw sector copy in OS9?  Something along the
lines of 'dd' ?
I know there are sort of raw device descriptors, like /d0@ I think.
That should let you copy any given floppy to image I would think, if
you can adjust the fdd device descriptor to deal with the tracks?