I feel like an idiot for even asking this but someone who's good with raw video footage:

I'm backing up iphone/camcorder videos by burning to a DVD as their raw files. 1,2,3 minute files.. as in, literally making a folder "January 2012 Videos" and dragging them in until it says disc full.

I can't fit many on a disc at all (each DVD is 4.7 GB/120 Min). Definitely not 120 minutes.. am I doing something wrong?

when I add up the time of the videos I just put onto the empty DVD, it actually only equals 40 minutes!