Best audio format for movies when encoding

[prairieboy]

I am using mediacoder to get my movies to play on my curve and have had pretty good success by looking at the existing format of the movies (video/audio) and then encoding them to work on my curve. However, I am somewhat confused as to the best audio format. I am faced with many selections but only some of them actually work.

I have one movie that has and audio bitrate of 96 kbps and a sample rate of 44000 hz, but when I use the LC-AAC profile, the sound does not come across very clean. Any suggestions.

FWIW - I have dl'd lots of movies from this mp4moviez and everyone does not play on my curve in the existing format, so I have to encode them to get them to work.