So, I did some playing around today. I used a program called VirtualDub to extract the raw wav audio from the AVI. I then imported that into Premiere, and it played correctly, channel 2 had audio, all others had nothing. So then I reimported the original AVI clip, and MAGIC! The clip’s audio was correct, and if i went to Modify-Audio Channels, only channel 2 had audio like it’s supposed to.
So then I made a new project, imported the original AVI, and again, no audio on channel 2, Premiere wasn’t seeing the audio properly. Then I imported that separate Wav file, and that played properly. I then put the original AVI into the timeline, and still nothing.
Then, I deleted the pek files for the AVI, deleted the AVI from the Browser, re-imported it, and magic, the audio is read correctly.
So it seems that loading a ‘dummy’ wav file without video, and then loading the AVI gets Premiere to see the audio properly. I’m next going to import some more AVIs and see if this continues to all AVI’s, or if it only worked because it was the same audio and length as this clip.