What is you project setting? I would try "saving as" a new project file and change your project settings to NTSC DV Widescreen. You might need to turn on "simulate device aspect ratio" to correct the pixel ratio on the preview window. Make sure in your project setting you have render quality set to Best. Then make sure things look the way you want them to and try the MPEG2 render again.

Is the camera media 1080 60i? Did you shoot with any progressive modes or other settings? Are you mixing video codecs on the timeline, like AVC, DV or mpeg2?

Have you tried rendering to another codec, and letting DVDA render the video when it builds the disc?

Do you have any video in your time that line that maybe has no audio stream encoded into the file?

Its hard to troubleshoot these type of things with so little information. It could be Vegas, but more likely its some type of jacked settings with media or plugins.

Thank you astar for replying.

The two projects I am working are the first two I have started in Pro 12. I will give you the details on the more important of the two projects since that is the one I really need to get a clean render to DVD on.

15 minute timeline. Project properties HD 1080-24p
4 video tracks 2 audio tracks
3 camera shoot - 2 tracks with AVCHD 30p and 1 track AVCHD 24p
1st audio track is audio from one of the cameras that runs the entire length of the clip
2nd audio track is random background music (so yes audio from two of the cameras was removed from project)

I have tried to render out in DVDA NTSC 24p with the same audio stutter problem present. The audio stutter is mostly occurring when the 30p footage is being played. If I render out in NTSC 24p I get a lot of ghosting on the 30p footage. I am aware that mixing these two framerates is not the best idea and I won't do it again. lol I fell victim to the 24p setting on my camcorders which is really not 24p, and my T3i which was set to 24p is true 24p so that accounts for the mix and match.

FX- I have slight color correction applied to all of the video in the project.

Camera switches are done via composite level envelopes on each track.
Main audio also has a volume envelope used to cutaway for the background music.

The audio stutter appears with no real pattern. In the 15 min project I am hearing 5 or 6 stutters that change after each render. The first stutter usually appears within one minute to a minute 30 and the subsequent stutters just show up wherever.

Something else that may aid in a solution, when I drop the rendered footage into a new vegas project it plays fine with no stutters, but the same footage stutters in WMP and the stutters do wind up on the DVD as a finished project.

I hope I am explaining this well. The one thing that leads me to a Vegas problem is that the audio stutters appear in my other project as well which is simply a 1 minute, single camera project (AVCHD 30p) with no color correction.

astar, I really appreciate your suggestions and will give them a go! If there is anything else I can offer to you in the form of information please let me know.

Thank you!

UPDATE: So I just burned the project using the new DVDA 6.0. NO Audio stutters! :)

Think I'll call it a day and be happy I got this project to its final destination.

Hmm. Glad you figured it out.

The audio leads me to think there is an issue with AC-3 decoder setup on your machine. Do you have any other DVD player software installed? What sound hardware do you have, your profile does not contain this. I would try rendering both AVC30 and AVC24 to XDCAM or DNxHD. Pick whether or not you want 24p or 30p. More than likely your AVC 30 is actually 59.97i, which you would select that when choosing the XDCAM format. The media match feature under project setting should detect the right format. You could even render to DV widescreen, since DV supports 24p and uncompressed audio. What I would be interested in seeing if you get the stutter with media that uses an uncompressed audio stream. My thought is that either video or audio is falling behind and the system is realigning by dropping frames. That issue would seem random based on whats happening on the system. The theory falls apart when you say the problem does the same thing when put to Disc, then it might just be frame rate mixing funk.

I had an old sound card that was uber for the day (ASIO, 24-bit, dolby and all that,) and vegas loaded asio drivers and seemed to work. Until I started layering avchd footage and then the system started acting really strange, crashing, and audio issues. I removed the old sound card and started using the onboard sound, and the system stabilized. With the old card the system was stable and good sound if the project had only media with uncompressed audio. It took me several angry days of crashing to finally blame that old hardware. I was blaming Vegas, and would switch back to version 4 because it was stable. But the common factor was version 4 did not support AVC with AC-3, and all the media was uncompressed audio. AVC and DVD both encode AC-3, which might be the common factor. You could set DVDA to encode PCM instead of AC-3 for a test. Just thought I would share the experience.


Multi track or camera editing - I do not use video envelopes. I lay each camera on a separate track and then make a cut on the top layer, and mute that clip so the bottom layer is visible. This method can support any number of cameras on top of each other. I have had 4 cameras working this way. The track envelop might be doing exactly the same things, not really sure. To mute the clip you just right click > switches > mute.

Converting the 30p to 24p - under project settings make sure to have render at "Best" and de-interlacing at Blend. The ghosting is just something that is going to happen, unless there is some one else that knows a better way. Going 24p to 30p might be better since the pull down would be working the right way.