My dvd will read dvd but not cd's. Any help?

What kind of CD are you trying to play? Is it a shop brought CD or a CD-R/RW that you burnt yourself?

If it is a self-burnt CD, what brand is it? Certain brands of CD-R/RW can perform differently to other brands. Cheaper brands can sometimes not be read in certain players.

I Am A Certified Electronic Repair Tech. This Is A Customers Unit And It Does Not Make Any Difference If The Cd's Are Bunt Prerecorded Or Even Mp3's. But The Unit Plays Dvds Just Fine.