Need help playing a cd

Hey im sure this is a noob question but im trying to play a cd-rom video on my computer but when i attempt to open it it with media player i get the message:

The file you are attempting to play has an extension (.) that does not match the file format. Playeing the file may result in unexpected behavior.

so i click ok then followed by media player cannot find the file. Is there a player i could download to play this? Ime sure this is a noob question but i appreciate any help i can get. thanks

With the disk in the drive, click My Computer, then right click on the CD drive and select Explore. What is the extension of the video file you are trying to play?

I figured it out thanks alot for your reply whap very much appreciated