Definitely not resolved. To confirm behaviour- I can get to a movie by doing a "search" and typing any letter on the screen and then I can select it and play it fine but none displayed in the default grid/list when I pop up movies from the media menu.
It seems to be, as stated, the drive being marked as offline everytime a media director starts up. In other words, after manually marking the drive as "online" in the webadmin device details, the movies all appear. Then, shutting down any of the MDs doesn't affect it but as soon as one of them starts up, it disappears again.
I'll search for the ticket because Thom mentioned earlier this had been resolved. Perhaps that'll give me some clues.
Edit: Couldn't find the ticket. Next step, I'll watch the logs when starting an MD and see if I can pick up the event that is causing the drive to go offline.