Recently flew DXB-LHR in business with Emirates on a 777-300. Despite the huge choice of inflight entertainment, there were a few particular films and programmes I wanted to watch so I took my own portable DVD player. I was really impressed, however, with the size of the seat's screen (much bigger than my DVD player's) and the cabin crew informed me that you can connect devices via USB.

I've searched the internet quiite thoroughly but have not been able to determine whether you can watch video this way, either directly from storage media or using a cable to connect a device such as a DVD player.

Can anyone please advise.