May I ask how did you replace the music in the StreamMusic folder for Kotor 1?
I've followed the tutorial on how to add custom music to the game, and I've only been able to add 1 song because of the line limit in ambientmusic.2da, and since replacing the existing songs doesn't work the same way, I don't know what to do.
There is no limit in ambientmusic.2da, you can add as many entries as you like (this goes for all .2da, there might be SOME theoretical limit, but it's probably some crazy high number that no-one ever runs into).
Click anywhere in the red area in the picture below to create a new row in the .2da, then just type in the new values for every column.
http://i47.tinypic.com/5n88b4.jpg)