Burning to DVD5

OK, I’m a Newbie and have what I hope is a simple question. How come when I try to burn a 750 Mb AVI file to a 4.7 Gb DVD I get a message telling me it won’t fit unless I bump down the quality?

[QUOTE=WayNerd2;1968463]OK, I’m a Newbie and have what I hope is a simple question. How come when I try to burn a 750 Mb AVI file to a 4.7 Gb DVD I get a message telling me it won’t fit unless I bump down the quality?[/QUOTE]

I assume you mean “convert” to DVD.
It all depends on the bitrate, resolution and length of the movie that refers to the target (VideoDVD).