Salesman will say anything to sell their product. I'd been to Pai's electronics in B'lore to buy a 4 slice toaster. Now all 4 slice toasters have a 15 amp plug because of the higher current drawn by the toaster. The salesman was hell bent on convincing me that it is all toasters use a 5 amp plug without even checking. He then so boldly decided to show me and took a a 4 slicer's plug to the wall socket. Guess who had a good laugh when he was trying to fit it in? :rofl:
As techcheat pointed out, the variables are too many. Maybe you can note the model nos of the h/w being used and check online. Ask him to eject the disc maybe. Find out what o/p is being given from the player.