The player app controls spin up/down with more intelligence, though - the timeout for spindown gets backed off depending on what you're doing (eg, if you've been skipping songs a lot recently). Yes, we could keep adjusting the spindown timeout, but it seems far better to do it ourselves; also, this allows us to do things like flushing dirty entries to the dynamic data partition when a spindown is about to happen so that it is as up-to-date as possible.

It also staggers spinup on 2 drive systems, as mk1's on the home ac adaptor were marginal for current draw with 2 drives starting at the same time with the display on.

Hugo