Re: Copy 2+

[dempson@swell.actrix.gen.nz (David Empson)]

In article <2CFFCFB9.5149@news.service.uci.edu> pho@vmsa.oac.uci.edu writes:
> In article <CHGGzB.GBo@actrix.gen.nz>, dempson@swell.actrix.gen.nz (David Empson) writes...
> 
> >7.x: Added support for disk image files (removed in version 8)
> 
> Wonderful...  With the information you have provided I think I just found
> a really easy way to get disk images for the Apple II emulator for the PC.

Maybe, maybe not.  The problem is that Copy II+'s image files may use
a different internal organisation for the data.

I expect that the disk image files are stored in ProDOS block order,
but an Apple II emulator may expect the sectors of a 5.25" disk in
ascending sector order.  ProDOS blocks do not map directly to sectors
(block 0 is sectors 0 and 2, block 1 is sectors 4 and 6, etc.)

If you are going to try this, I recommend Copy II+ 7.2 over version
7.4 - the former takes less passes to create a 5.25" disk image if you
have enough memory (I think it takes two passes, while 7.4 only does
three or four tracks per pass).
-- 
David Empson                                                               
dempson@swell.actrix.gen.nz                                                
Snail mail: P.O. Box 27-103, Wellington, New Zealand