Cannot render 16:9 video for youtube I downloaded this YT video, and want to make it 16:9 in Vegas 10 pro.  

Here is my file settings:

Template - HD 1080 24p (1920x1080, 29.970 fps)
Frame rate - 29.970(NTSC)
Field order - None (progressive scan)

Render settings:
Save as type - Sony AVC (.mp4,.m2ts,*.avc)
Template - Internet1280x720-30p
Bit rate - 8,000,000  

Right click on video track - properties - Maintain aspect ratio is not checked.

Playing in Vegas is fine, but rendered video is full of interruptions, freeze places...
Audio sounds ok.
Rendering still images with the above settings is ok.

Any help, pls.
Have you tried to disable graphic card rendering? Incompatible graphic cards or drivers may cause the exact symptoms you describe. Preview may not use graphic card rendering, as this is controlled by another setting.


Select Options|Preferences 
Go to tab card "Video" 
Set "GPU acceleration of video processing" to "Off"
When rendering: Open your render template and select Encode Mode:
Render using CPU only.