Do you want to edit the videos or do you just want to convert to dvd video?
If you just want to convert, there are many choices. ConvertXtoDVD is a commercial product that is popular around here for this process. There is a free trial available (it will leave a watermark) if you want to try it out. There are also some free options like FAVC and DVDFlick.
If you need to edit out sections, you may want a different type of program. Adobe Premiere Elements will allow you to make cuts, transitions and then convert to dvd. Corel Ulead Studio 11.5 is another choice for this, or you might want to try out its new replacement, Corel Video Studio X2.