Chronicles of Narnia. Lion,witch,wardrobe blu-ray won't play

Updated firmware last night (for the Bd370) and the main movie disc for Chronicles of Narnia: Lion,witch,wardrobe worked (after previously stalling). However, the bonus disc still doesn't work when I play it (just a blank screen). I traded the Blue-ray DVD from where I bought it for another one, and it made no difference. However, both Narnia discs played okay in the store on a Sharp blue-ray DVD/Tv combo.