[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: it's a FAQ I know, but IIc 5.25" -> anything?



"Paul Schlyter" <pausch@saaf.se> wrote in message 
news:dct9b8$313f$1@merope.saaf.se...
> In article <hjbIe.7329$p%3.33983@typhoon.sonic.net>,
> Andy McFadden  <fadden@fadden.com> wrote:
>> Paul Schlyter <pausch@saaf.se> wrote:
>>> Yes, the Apple II low-level format is incompatible with standard
>>> MFM disk controllers.  But this utility (which btw runs only under
>>> plain MS-DOS -- no Windows!) still manages to read Apple II
>>> floppy disks into .DSK format file images on a PC.  It can only
>>> read the floppies though, not write to them.  And I suppose the
>>> Apple II floppy disk cannot be copy protected, it must be "open".
>>
>> The .FDI output is actually a bit more rigorous than .NIB when it
>> comes to copy-protected disks.  For example, you can tell the difference
>> between 9-bit and 10-bit self-sync bytes, and it might be possible to
>> handle track synchronization with the index marker.
>>
>> Of course, no Apple II emulators support .FDI directly, so it's not
>> really possible to take advantage of this.  The closest format to it
>> is .APP, which supports variable-length nibblized track data.
>
> The trial version of DISK2FDI does not support .FDI creation.  It
> can generate .DO files though, plus some other image formats relevant
> to non-AppleII-computers.  See 
> http://www.oldskool.org/disk2fdi/trial.html
    I am not sure I understand how disk2fdi program work.  Someone claims 
that PC's MFM floppy drive can read Apple II's GCR floppy disk at read only 
mode while it converts to create .dsk image.  Correct?  I don't believe so. 
Please clarify more how disk2fdi program works.

Bryan Parkoff