HD DVD and Blu-ray follow profoundly different strategies in their bid to summon the storage capacities required for HDTV recording or high-definition PC games.

• 尽管高清晰度DVD和蓝光都是为了满足高清晰度的电视录制和电脑游戏存储需要而出现的，但它们采用的技术却大相径庭。