I have a buncha of movies in divx or xvid formats burned to many CD-R’s. I recently got a DVD burner so I want to put them onto DVD-R’s so I can play them on my DVD player. I’m using WinAVI Converter to go from avi to .vob which I hope to then burn with Nero Burning ROM to a DVD. I’m doing one now its taking forever to convert (3 hours?) but the file size is becoming huge. I’ll need a whole DVD r for every CD r i have. Why is that? 
avi is a compressed video format for internet and pc whereas dvd format or “VOB” is an uncompressed format this is why it takes up a whole dvdr. the conversion software you use uncompresses the compressed..... hope this helps
so theres no possible way for me to fit more than one of these movies onto a dvd disk. I feel like somewhere i’ve seen like 3 or so movies movies ripped from a DVD and fit onto a single DVD disk with minimal if any quality loss. Maybe it was a special dvd player idk
also how is it then, that if u buy like a TV series season they can fit like maybe 3 hours worth of episodes onto one DVD and i can barely fit an hour and a half?
When burning the software should converter the avi file to vob. It will take long time to get it done.
Total Video2Dvd is a good choice. it can “Auto Convert and Burn MKV, Blu-ray TS, M2TS, AVCHD MTS, HDV1080i, Divx, Rm, Wmv, Avi to DVD Video Disc directly.”
find：http://www.google.com/search?hl=en&q=Total+Video2Dvd&btnG=Google+Search&aq=o&oq= http://www.effectmatrix.com/total_video_to_DVD_Author/index.htm
can you burn your avi files to dvd totally?
Personally, I have used Aunsoft MTS to DVD to convert avi files to dvd, effect is very nice ,and it can convert any video and audio ,you can have a try .