22 Dec
2005
22 Dec
'05
2:07 a.m.
On 12/22/2005 at 1:09 AM ard at p850ug1.demon.co.uk wrote:
Sicne these ST506/ST412 drives are dumb devices (they
don't try to
interpret the data pulses, they just record them and reproduce them), I
don't see how a drive can do RLL but not MFM.
Just so--in my experience there were drives without sufficient headroom to
do MFM but not RLL, but not the reverse. And some drives could handle RLL
2,5 but not RLL 3,7. Some manufacturers designated certain drive models as
"RLL capable".
Cheers,
Chuck