Ok, im really lost now. I don't have a xbox, but my roommate had one. Are you saying there are two trays in you xbox to put discs in? Also, do you have the remote because i don't think movies work without the remote.
lol, haha there is only one side of the xbox that will open, this is the left side which will read almost every format if you put a mod chip in, and without a mod chip it will only read dvd games, dvd movies, music cds and some cd-r music cd's.