reformat the file what do you mean exactly?

Can you add what format it is now (extension codec maybe?)

A tip-off of my likely awnser would be that changing about codec types will usually result in a quality loss unless you know what you are doing (AonE encoders obviously know what they are doing )

If you are talking about vcd to view it on a dvd player. Nero has a function for this. It takes some time but it gets the job done. Don't know of other software as I don't do (s)vcd. Because I am blessed with a monsterous laptop that also happens to have a svideo-out