I downloaded a film, AVI I think, and have converted it to standard DVD ready to burn to disc. I've just realised I didn't add the subtitle file. Can I add this into the video folder (that contains .VOB etc files) or do I have to encode it all again, adding the subtitle file earlier in the process? It took two hours to encode, so I don't really want to do it again. I intend using Nero to burn to disc.