2 Mar
2011
2 Mar
'11
11:31 a.m.
On 02/03/11 03:36, Fred Cisin wrote:
I can tell you the controller PCB schematic is almost identical to the
relevant bits of the Commodore 8050 (not suprising, given the designer).
I have no idea if the contents of the encoder/decoder ROM are the same
though, and that you would need to know.
-tony
Send one to Philip. But, don't tell him
what's special about the format
until he ferrets it out! :-)
If memory serves, it's a GCR based format recorded in 9-zone Z-CLV.
Constant bit density mode, in other words.
Of course, the bloody technical reference manual is missing almost all
the relevant figures, and provides no details about the GCR coding
scheme other than the sync pattern (lots an' lots o' 1s -- how predictable).