Can't Watch a .dvd file

Hi,

I'm running Windows 8.1 on a Dell Inspiron 3551 Laptop, using a DW316 external CD-DVD R/W drive. A friend was in the local university's production of The Mikado, and gave me a dvd of the show. The files on the dvd are: JACKET_P, OpenDVD,VIDEO_TS. 

When I click on OpenDVD, I find files: ClickMe, which is an .htm file; and, UA Opera Theater Presents THE MIKADO . . ., which is a .dvd file.

I can not find a way to watch the performance! Please help. Thank you!