tabatharyann:

Your post to this topic is really off topic. You will probably get more (and better)results if you start a new thread with your question.

From my limited knowledge, my suggestions would be to:
1.If you burn both CDs and DVDs make sure that you have got the right setting in your burner.

2. Make sure that the disk is closed. Some players will not play a disk that has been burned with the idea adding to it at a later time.

2. If the settings are right, try another burn at a slower speed.

As I say, a new thread with a better title will undoubtedly get you more answers from people who are more knowledgeable than I. Only people who are subscribed to this thread have probably paid any attention to it.