Can't see files on any cd

Hello, i can’t see the files on my cds, i try an external cd drive but nothing, i open the cds on another pc and the files are there. What will be the problem? I recently install windows media player 10.

Undoubtely an Operating System issue, since the contents are available on other pc’s. But what part of the OS is responsible for this “bug” cannot be determined due to the complexity of the OS.