> Well, it really is...
Manuel, your diskrom has been replaced with a fast version. It's very
common, especially with Sony machines. So you're right.
> The sound that the drive makes (when it
> changes track or something?) can be heard very clearly, and in the
> fast diskROM-case, it can clearly be heared that it loads faster.
What I think you are referring to is called the 'step-rate' of the
diskdrive. The 'fast' diskrom uses a faster step-rate. That's
possible because the WD diskcontroller used in Philips and Sony MSX2
machines has a programmable step-rate, if i remember correctly from
my diskcontroller programming experiments it has 2 bits to select
that rate, so you have 4 possibilities varying from very slow to very
fast. I think that has been done because old diskdrives (in the
early 80s) had slower head-positioning mechanics.
> There really exist disk ROM's on MSX with _caching_?? Didn't know
> that....
AFAIK there is no such thing.
Tristan
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