Forum Thread: 7D video transfer? conversion?

Totally new & positively frustrated here.  This is probably elementary to many of you (judging from the video clips I've seen here. GREAT WORK!)    What do I need to do to get my .mov file to play smoothly?  I have it loaded on my computer but playback is jerky, video stalls while voice continues, etc.  It is a huge file 799,367kb (at least compared to my photo files I'm use to working with).  Tried to load it on to Youtube and it said it was going to take 133 minutes.  For some reason I thought I could just open it in my video editing software and start working away??  Not!   I'm not planning to get into producing films.  Just want to shoot short clips and add to my photo slide presentations or perhaps make a fun video of the new grandson or my agility dog competitions.   Help me please!