AVI is a wrapper, what is inside YOUR wrapper - Exactly what is INSIDE the video you are editing?
Codec & Format information, with 2 links inside for you to read http://forums.adobe.com/thread/1270588
Report back with the codec details of your file, use the programs below... A screen shot works well to SHOW people what you are doing
https://forums.adobe.com/thread/1070933 for screen shot instructions
Free programs to get file information for PC/Mac http://mediaarea.net/en/MediaInfo/Download
-below says Mac (Win process should be the same) but even GoPro says to convert to edit
-use to convert http://gopro.com/software-app/cineform-studio/
I'm assuming you converted the original files to .avi using GoPro Studio? Is that on the same machine as Premiere? You would need the Cineform video codec installed on the Premiere machine for the clips to work and that would be there if Studio is on same machine. Are you getting an error message when importing? Please elaborate on "Won't import".
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