Enjoy a true HD viewing experience with the Sony BDP-S550 Blu-ray player. This player makes the most of Blu-ray clarity by delivering a 1080p resolution to all of the DVDs. The player is also useful for those who have an extensive DVD collection. Its high-tech upscaling abilities supported by an HDMI connection make it possible to play those that would normally have a 480p resolution in 720p or even 1080p full HD. Experience high-quality sound as well as picture with 7.1 channel Dolby sound, featuring Master Audio and High Resolution Audio. The Xross Media Bar interface is simple to use, and gives the user a high degree of control over their playback experience. It comes with a 1 GB built-in memory board, and a USB port for adding additional memory, if needed.