It has a Combo Drive, which is a DVD player, CD Burner, and CD player.
Or it could have a SuperDrive, which has everything else, but the added feature to it is the DVD Burner.
Either way, it will play DVDs. If you want some more info, click the Apple logo on your taskbar and click "About This Mac".
When the window comes up, click "More Info..."
Then, another window will appear (System Profiler). there, you can view the entire technical specs of your system, from RAM to Software Logs.
hope I helped