The issue seems to be at JVC's end. It's the only camcorder that has these issues.
You'll find one workaround on the last page of this discussion at Muvipix.com.
But unfortunately those Everio MODs march to a completely different beat.
my camera is a canon. imports work great in primer elements 8. not in 14.
Canons don't produce MOD files.
What model of Canon are you using, and how are you getting the video from your camcorder to your computer?