What Is BD-Live?
BD-Live, introduced as part of Blu-ray profile 2.0, is a new, interactive, and exclusive Blu-ray feature including online chats, Internet games, downloadable content such as actors' profiles, trailers, background stories, etc. and aiming to extend viewers' experience.

Requirements of BD-Live
BD-Live requires the Blu-ray Disc player to have an Internet connection to access Internet-based content; and also requires a built-in hard disk or external storage with a capacity of at least one gigabyte to store downloadable content. First of all, the disc must have BD-Live function.

Passkey Solution
If you play a BD-Live protected Blu-ray disc with an old player with no Internet interface, then you cannot obtain the BD-Live benefits. However, if you want to concentrate more about the film itself, it wouldn't be a bad thing. But if you want to copy a Blu-ray with BD-Live function then play the copy, the playback would stop. Fortunately there's Passkey, which can remove BD-Live and let users utilize a copy tool to copy the movie so as to get a smooth and happy playback experience.