I'm VERY new at this but I'm having a lot of trouble recording a movie that does not jerk when played back.  In fact, I have not made one yet.  I've tried changing the format and I believe I am using the correct micro SD card (with a number 3 in the U on the card) but it will NOT make a movie that does not jerk.  I'm using a MacBook Pro and it defaults to QuickTime player and I am using the latest version upgrade.  Does anyone have any idea what might be happening - or what I might be doing wrong?  Any suggestions on how to overcome this?