> while format compatible with the RQDX controllers,
> uses a higher sector 
> interleave factor which is not required by the
> RQDX3...so it spends a 
> good bit of time twiddling its thumbs waiting for
> the right sector to 
> roll around when it could be moving bits.

Yes, but it is more like 80% full speed not that bad
for a ST-225 which came in two models the -1 a little
faster but both were slow, RD54 was better. Now too
low a interleave factor requires a full turn to get
the next track which is very slow.

Stanley


	
		
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