I'm not sure that this is necessary, Hugo. So long as the "hdparm -S1" (or equivalent) gets done at startup, the player can start/stop the drive at will, and user apps will still be happy (and the drive will spin down 5 seconds after any such apps complete disk access).

For that matter, if it's preferred, I could even do both things in hijack.. discard spin up/down attempts, and do "hdparm -S1" on startup (all configurable in config.ini).

Cheers