I am guessing that few if any of the files are mpeg 2. Use nero vision express to convert to dvd format (if your version of nero has it). Open start smart, click make your own dvd video, add the video files, keep going through the program to make some simple menus and it should play fine. Fyi, yes it should take a few hours to transcode an entire dvd's worth of content so don't be suprized. If it doesn't work, thier could be a few issues, like the corect codex isn't installed, or nero doesn't like that particular file type (I have seen a few that it didn't). Post what specific problems you have including what errors if any if this process doesn't work. Fyi also keep in mind, if you are getting it off limewire, the file may be corupt. Does the downloaded file play fine from the hard drive on your computer in a media player?