1. Audio settings is 48kHz, 32-bit.
2 .No, it is completely in sync in the beginning, but slowly drifts away (video goes faster than audio), and after about ten minutes, it's 4 seconds out of sync. EDIT: 1 second, not 4.
3. 25p
4. Yes, but 25 is 25, right? It's only 24 and 30 that's not "24" and...