Is this a new .wav file? Wav files can have different formats, and you have to be sure to use the correct one. The easiest way I have found is to open an existing .wav file in a sound editor (one came with my sound card). Then paste your wav file at the end of it, and delete the existing sound leaving only your part. Then save as a new name. Next you have to get GR to recognize your new file. Open Igor, set your mod as the default, then go to the sound editor and change to the directory with your wav file. If Igor recognizes your file it should show up on the list. Different colors mean it's good or not. Click reconcile and Igor should set it up for use in the game by creating a .xml file. (If you need to open the .xml file you can open it with notepad.) Then your briefing file should work.
