I know next to nothing about audio/video.

I need to combine a video I shot with a JVC camcorder (MediaInfo reports that it was recorded as MPEG-PS: MPEG video + AC-3 audio) and also recorded independently in WAV with a Tascam DR-40 sitting in front of a loudspeaker at the conference.

I was recommended to use Sony's Vegas Movie Studio HD 11 to combine the two media, but when I choose Project > Import Media to select the MOV file, Vegas says: "The file is an unsupported format".

What would be the recommended way to convert the MOV file into something that Vegas can work with?

Thank you.