Disco 3 (LR3) muti media player

Hello, I was wondering if anyone can help me please, I've recently bought Disco 3 and it has multi-media screens in the headrests, but the dvd player which according to the manual is located in the rear storage area in the side panel in the boot , its missing. Do i need a specialised dvd player, or can someone recommend anything and give me some advice please. I've got 4 eager children waiting in anticipation lol . thanks Julie

Is there a make on the screens or are they aftermarket?

May of been removed, not uncommon for them to fail