Problem with NeroVision Express

Why is it when i’m trying to burn something that equals to say 1.7gig it ends up being like 6 gig on this program?!?! what is up with that?!?!

What are you trying to burn?
Nero Express is desgned to make DVD-Video disks, if you are burning 1.7gb of .avi or .mpg files for example, it must reencode them to the format that your DVD player uses. Nero Express, and most DVD burning programs are set so that 2hrs of Video is ~4.5gb.
If you are just burning to dvd to be able to store the Video files and you don’t want to play them on your DVD player, then just burn a ‘data dvd’ with ‘Nero Burning Rom’.