I always use the content management software to import video. No dropped frames. I have imported segments up to 1 hour and it does a great job. I use Premier Pro and on occasion crank up Sony Movie studio Platinum. Never had a sound issue. When recording where are the sound meters on your display? Id like to keep mine 3 ticks from the red mark on the right side. But then again I record racing mostly. I would be interested in knowing what you solution is when you get one.