Uncompressed AVI problems & questions

I'm working on a new feature that was filmed with the DVX100a that I'm currently editing in Vegas 7. I filmed using the 24pa setting and squeeze. The footage looks and sounds great, can't be happier. The problems is with the rendering in Vegas. I usually edit scenes individually instead of in one LARGE file simply because there's just too much that can go wrong with ONE file for a feature length film! So, I edit individual scenes, render them and then put them all together into one .veg file that contains all the rendered scenes. In the past I was stupid and rendered back to the standard widescreen DV codec and added extra, unneccesary compression that is OBVIOUS and somewhat painful to watch. Now, everything I've been reading says I should render to an uncompressed AVI and import those into the "final timeline" and then render from that.

There seem to be some problems with this, though. When I render to an uncompressed AVI, should I render it out at 23.976 or at 29.970? I know with the DV codec, it allows you to put in the 2-3-3-2 or 2-3 pulldown. Is that unneccessary with uncompressed files? Also, when I do render using the 1.21 pixel aspect, the video doesn't look right. It's squished on the left and right, almost as if the video defaults back to 4:3 even though it was filmed in squeeze. How does the DVX and Vegas recognize the squeeze setting? Is that lost when you render to an uncompressed AVI? I've noticed that when I render it at 1.000 (square pixels), the aspect ratio looks perfect. BUT, doesn't this effectively letterbox the footage? If I want to then render the final product to a widescreen DVD-Architect MPEG-2, am I going to be losing some resolution by having to reframe my video to match the 1.21 output ratio? Also, why does it seem that rendering from an uncompressed AVI to a DVD-Architect MPEG-2 results in REALLY choppy video? Has anyone else ever encountered this? Is there anyone who can help me get this right? This is only my second film but I want it to look much better than my last one!
 
There's no pulldown with uncompressed. It's a straight 24p file.

When you render and bring it back into the timleline, look at the clip properties and check the pixel aspect ratio. If it's not 1.21, change it to that.

However, you really should be able to render with the Sony DV codec (and 2-3-3-2 pulldown) a number of times before you see any degradation.
 
Why are you rendering at all, why not just save each sequence and then bring it into a master timeline as a nested timeline. You will have better perfomance than working with uncompressed, plus you will save space and time.
 
Thanks for the tip scharky. I wasn't even aware you could do that in Vegas. Sure, the final render to MPEG for DVD Architect takes a REALLY long time but that's what overnight rendering is for!
 
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