Hmm, i would personally recommend the 'Paint Shop Pro' range not only does it allow you to edit recorded material but also allows you to edit still images (photos),create graphics,draw,create web designs and paint from 'scratch' and organize your images to make them more 'computer friendly' - by stating that i mean allows you to compress your work thsu saving on memory space. The full name of this software is 'Jasc Paint Shop Pro' at present it is up to version 8 but depending on what you need it for will depend on what version you wish to purchase.
Amazon and any other good software stockists will have the complete information on this and any similar products so i advise to look there,i merely recommend this particular piece of software as i personally use it and the added bonus it comes with some pretty good tutorials that are equipped for both beginners and intermidiates.
As for a piece of software that allows for video images to be transferred onto DVD i have no idea on what would be an ideal piece of software to use,but i recommend you try amazon or another reputable software stockist be it on the next or in person, i am pretty sure you will find a piece of software ideal for this particualr function but i doubt you will get a piece of software that can do BOTH graphical editing and DVD burning.
Hope this information has been of some use.