I belive youtube uses AVI MOV WMV and MP4 format files, so putting your vids onto DVD is not required as these creat vob files which aren't compatible..
YouTube accepts AVI and MPEG video, if you don't know how to convert video to Youtube compatible video, here is a step by step guide for you
http://www.freedvdrip...-zune-cell-phone.html
Then you can log in your youtube account and upload the video, If you have any other questions, feel free to email me.