What’s the Blu-ray Disc

6. What does Profile 1.0, 1.1, 2.0 mean?
Blu-ray’s specifications for video are broken into three profiles, each with its own set of hardware and software requirements. Profile 1.0 gave hardware manufacturers a grace period to create players that were capable of Blu-ray video playback, but didn’t need to meet the final standard profile requirements. This grace period ended October 31, 2007. These players, while not able to take advantage of all of Blu-ray’s promised extra content, will provide full 1080p video playback.
Profile 1.1, also known as BonusView, makes certain requirements mandatory: picture-in-picture, secondary audio mixing, a minimum of 256MB of memory (built-in or removable), and the incorporation of a virtual file system. Players created and sold after October 31, 2007 are required to meet the Profile 1.1 specification, and therefore will take advantage of 1.1-enabled bonus materials on certain BD discs.
BD-Live (Profile 2.0) makes mandatory all parts of Profile 1.1, but increases the memory requirement to 1GB and adds the hardware requirement of a network connection. This specification enables the even-more interactive web-based bonus material found on discs that provide such content.