did you edit the whole thing and export 30fps?
1. leave interpret footage alone at 30fps fields off(if rendered that way)
2. place 30fps into new comp set same fps for comp as actual footage fps (maintain non-interpolation)
3. timestretch 101.001001% that layer so that both audio and video get stretched simultaneously to 29.97
If that’s the case, the audio was edited to sync at 30fps so you’ll need to drop the 30fps comp into another comp at 29.97 (NTSC DV preset (720×480, PAR 0.91)NOT D1!)) with timestretch on(which will change both the video and audio) at 101.001001% then right click, fit to width will have slight black on top and bottom.
then render out lower field uncompressed or import ae comp into encore. set encore at .91 par, not widescreen, not square, but .91 par.
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