Just video no audio from Compressor 4 to DVD PRO-What's wrong

I have successfully sent my project from FCP7 to Compressor 4 and compressed it on Best Quality DVD 90 minutes. Once I bring in the file as an Asset in DVD PRO I just get the video part of the compression no audio. I also get a incompatible file pop up window sometimes. Any ideas on how I can solve these

2 problems. I have run out of ideas-this is the 4th or 5th day I have been working on these problems. Thanks.