So, it's even more urgent, uff.. Thanks for be here.

I'm editing a HD .Mov video (1440*1080), PAL 25 Fps.
The Audio.. I think it's irrilevant, since I can choose from Wav, Aif and Mp3.
The scary problem I have (and that I never had before) is that when rendering the Composition, the video is hugely pixelated, with a really poor quality and even Audio Problems sometimes if I try to render it to Avi.
I absolutely don't have idea Why this happens. I need to render it again into a HD Mov File.
I tried every setting I knew -> Nothing.
I even thought about a crazy test:
Converting the source to Lossless Avi for then rendering it again edited into the final Mov Video.
But.. This is where things get scary, VDMod doesn't accept it warning me about
''Cannot Detect File Type''
-----
I really need help here, anyone think about something?