most dvd boxes for TV hook ups will play both audio cd format and MP3 format as well as DVD conversions. As S&M suggested....look at the manufacturer's website for the model that you have and see what they have to say about the different formats that will play.

One other thing that you must keep in mind ....some players are very particular about the CD/DVD disc manufacturer that will play...so always use a top brand and don't rely on sale brand value pack discs to burn your music to.