I have an avi that is widescreen which I need in mpg to make an iso and burn to dvd.
Problem is, the result is a squished screen for the mpg. Any advice would be appreciated.

here is the code I used for conversion.

ffmpeg -i out.avi -y -target ntsc-dvd -sameq -aspect 16:9 out.mpg

Here is my video info:

$ ffmpeg -i out.avi
Seems stream 0 codec frame rate differs from container frame rate: 23.98 (65535/2733) -> 23.98 (2997/125)
Input #0, avi, from 'out.avi':
Duration: 01:53:04.8, start: 0.000000, bitrate: 856 kb/s
Stream #0.0: Video: mpeg4, yuv420p, 640x272, 23.98 fps(r)
Stream #0.1: Audio: mp3, 48000 Hz, stereo, 96 kb/s
Must supply at least one output file