huge files being exported in premiere pro & VDub

[sabrina-il.livejournal.com]

So I recently moved to Premiere (my WMM died so I'm taking the big leap) and I have a question. I make a vid, export it, and it comes out HUGE. I mean 30 seconds is about 250MG. Most frustrating since you can't really upload that kind of thing online.

I know this must sound like an obvious one but I've looked around and (like many very simple Premiere issues) there's no answer I've been able to find. Is there a setting I'm missing? Does it take another program?

Also, I use VDub to cut my clips (since Premiere doesn't play with my torrent-ed .avi files) and they all come out HUGE as well. I mean I cut like 10 seconds from a scene and the file is, once again, 250MG. I don't mind it that much cos I got some space and it's taught me to watch twice cut once but I was wondering if perhaps that too is fixable. I usually mark the clip I want and do File->Save As AVI.

Thank you, any help mucly appriciated!!