Nero DVD problems

I am using Nero Vision to create a Vd for my faily videos.
I have 4 video about 400mb each.
I put the first video into the conent section and it shoots straight up to 2.5gb!!

Is this because of the format the video is in?
Currently it is a .avi with Xvid codec.

Any ideas?

Thanks
John

You’re authoring a DVD. Commercial movie DVD are MPEG-2, and about 4.3GB. They have a specific directory structure which you can see if you view them Windows Explorer (VIDEO_TS folder, IFO, BUP, and VOB files).
Xvid is an MPEG-4 family codec and has higher compression than MPEG-2. That’s why when you’re converting to MPEG-2 the thing shoots up to 2.5GB.
The simplest thing to do would be to burn a data DVD with all the (unmodified) AVI files on it.
Most of the time, when people author MPEG-2 DVD’s, it’s because they want to play them in standalone DVD players. This is kind of resolved by DivX-certified players, which can play data CD’s or data DVD’s with AVI files on them encoded in the DivX codec (and sometimes in Xvid too). If your goal is to make MPEG-2 movie DVD’s, then you just have to bear with the extra space it takes. You could also sacrifice quality or resolution for space if the authoring program allows you to do so.

Right well i think i understand what you mean.

I have used GSport because i was recommended by someone top check it out to find the format and codec in use. It says Xvid so do i have to just have to grin and bear the extra space to use or can i convert it into somethnig else to use it on a standalone dvd players

Thanks again
John

nero vision alot better for converting avis ect comes with version 7 and sometimes problamatic version 8 i can get 3 films on superlong play ,my friend says this decreses quality but i can not see any he only noticed when he went right upto me tv and pressed face on it said yeah told you look that one dot there bad