Premiere 6- exported video is choppy

[illusionfist]

Hey folks, just wanted to ask the venerables of the board a question. I'm having to put some video together for a lecture and i spliced some different video scenes together by uploading them from an ADS Instant DVD. It uploads in mpeg2 704 x 480, 41000 khz. The raw clips that i uploaded play fine on my computer. Its the rendered footage after export that looks like crap. Its very choppy and i'm not exactly sure why. In the project settings, i chose DV playback, 29.97, etc. I have the audio on 41000 khz, 16 bit stereo. I chose DV NTSC (0.9) for the aspect ratio, etc.

For export, i'm using the LSX mpeg encoder and i'm using the mpeg2 option. For the video bit rate i just left it at the default of 5000 kbits/sec and the audio at 224. I've tried lowering the bitrate (which the quality goes to crap) and i've also raised it to like 8000, which doesn't do much and the video still remains choppy. I also tried something from the Adobe forums which said to change the audio preview file setting to 1 (usually 5) in the audio project settings, but still no dice. It said to do that because sometimes the audio will interfere with rendering of the video and cause it to be choppy (although i'm not sure if thats in reference to just playback or actual render).

I dont know if this will help, but the actual files were uploaded from tape via the ADS Instant DVD. In premiere, the files have an avg data rate of 394 (and some decimals) kbits/sec. Normally i just burn footage to DVD, but this time around i'm exporting it to tape since i need to show it in the classroom.

I dont recall having this problem with tape material before.

Any help or advice is appreciated.

Peace

[illusionfist]

I also wanted to add that on export, the regular export settings like aspect ratio, etc all matched my project settings. The only thing that i didn't set was the fields because when i use the settings viewer, it can't tell what field setting it has. It just has "unknown."

Thanks