I do this all the time plus I do video editing etc...
1. Very simple way... If your movies are DVD5 or DVD9 it doesnt matter. If you have a Video_ts folder that is already created... the simplest way is this.
Get Nero version 8 or what not.
Once installed, click on Nero Express.
Once it comes up click on videos/pictures icon
Then click on DVD_Video files
(go to your video_ts folder of the movies) - double click it so you have all of the files shown in the folder, and drag them over to the nero window. Then click next and burn... if they are already in Video_ts format this works 100%... for me any how..
If you're wanting to burn something like avi's, mpg's, etc...
This is always tricky because you dont know how the files were originally encoded.
however if you use something like ULEAD Dvd Movie Factory you can make and burn all in one. Just drag the movie files over and click encode. This will take hours however... do it before you leave for work or before you go to bed...
Try that 