DiscFerret: First working hardware, firmware and microcode!
cclist at sydex.com
Thu Nov 4 17:33:39 CDT 2010
On 4 Nov 2010 at 15:04, Fred Cisin wrote:
> Thanks. I got sloppy. This is one situation where I should have said
> "MFM", or clarified the comparison as "ST412 MFM", since I was trying
> to say that the RLL drives were cabled the same, but the data transfer
> rates and encoding may be different.
...and "MFM" as interpreted on an ST412-interface drive can vary
wildly between manufacturers (with respect to ID mark conventions,
CRC/ECC polynomials, etc.).
And then there was "ARLL" that was something like (3,11) (although I
don't remember exactly). Used mostly by Perstor controllers.
I'd be mildly surprised if some enterprising firm didn't try to
record a frame of analog video at 60 fps on an ST412 track. One rev
Also, some ESDI drives used hard sectoring.
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