I have latest beta 1.0.75_G and when using the audio offset option to adjust audio delay I do not notice anything changing. Tested both via Zidoo-->TV-->arc--> AVR and via Zidoo-->optical-->AVR . Seems like the audio offset option does not make any difference at all. Anybody else noticed this?
No idea, it's not something I've ever used - I'm on a later test firmware and it does it with that too - will report after Chinese New Year holidays.