I would say thesame as maderin, get another ainol v9000HDA and you should be fine. If good movie playing is very important to you and the sound quality for audio playing was good enough for you, then i would get thesame player again, as i don't have those problems you mentioned on my ainol V9000HDA.
Did you first try the latest firmware? Mine came with the latest firmware so i didn't have to update it yet.
Most things that seems like bugs don't bug me that much
there are just a few things that i find weird, like the noise it makes when charging (anyone else has this? i did post a message on the forum about this but didn't got a response), it is just weird, i don't know if it is normal for ainol players because i didn't see this on other players. And then the click noise a second or 2 after i pressed the power button to power it on, or press the power button to wake the screen.