Why my dvd player wont work when i install the dvd decoder

[dirtdog47]

when i install the dvd decoder my dvd player still wont work

 

[PhilFrisbie]

What DVD decoder software did you install?

Have you tried several DVD discs, including original discs?

 

[AlienTechGod]

Have you tried vlc?
http://www.videolan.org/vlc/