Having said all that, my Mark 2 doesn't currently spin down at all, with ReserveCache=0 and only about 5,000 songs on it -- though that might be a separate bug.

And thus it was. Looks like v3 alphas 2 to 6 never spun the disks down (the icon disappeared, but the actual spindown command was never being issued). FITNR.

Not that we "recommend" running these terribly flaky alphas in the first place, but I think this bug is serious enough (heat issues, vibration sensitivity issues) that I now don't recommend using these alphas at all until alpha 7 which will have it fixed.

Peter