I have a video that was shot in 16x9 and my client wants it to be a 4x3 letterboxed video for the web. The logical thing would be to edit it natively in a 720x480 anamorphic sequence but my client has several videos that this needs to match and told me to edit it in a 720x480 sequence to match the other videos (deeper black bars). So I setup a 720 x 480 NTSC sequence and threw in the footage without having to render and finished up the edit. The exported file (quicktime H.264 medium 320 x 240) comes out stretched). I have been racking my brain as to why this is happening considering that the video in the canvas looks perfect. I have exported it a number of different ways to try to correct the image and it all comes out the same. Any ideas as to what I am doing wrong?