Question about Sony UBP-X800M2

Since the device supports Blueray, you can watch all Blueray DVDs with it.

Hi Dino Hell,

the Bluray discs that the player supports are: Ultra HD Blu-ray, BD-ROM, BD-R /BD-RE. Please also note the playable formats and . You will find these in the operating instructions of the player. Playback of some Ultra HD Blu-ray/BD/DVD VIDEO or Internet videos may be restricted depending on the geographical area.

Sony Support EN

I know that the Avatar movies do not work on all players

Correct, the device is of course compatible with all formats that have a lower resolution.