when you convert a disc I would normally ask you where you want to save the files....
it would have asked you the first time you did it.
but if you cannot remember, then first of all go to the "C" drive and "program files" and find the nero folder and see if it in there.
If not try the "my Videos" files in my docs.
I use a different program sorry, try this first and see if they are there!
I will see where my nero saves files tomorrow as Im now using a LINUX system