Quote:
Originally Posted by Daemonia  According that 10k Bullets review, the BU disc is
Also, just out of curiosity, why is the BU transfer 4GB bigger than the Arrow transfer? I'm only asking because I have no idea about how these things are encoded. |
BluRay video can be encoded in a couple different formats and at different bitrates. BU is 4GB larger because it's encoded at a higher bitrate which is possible because of the fewer extras (Arrow has 3 hours of HD extras, BU has 1 hour of HD extras and 1/2 hour of SD extras).
Arrow has DTS-HD 7.1 and 5.1 tracks as well as Dolby Digital stereo and mono tracks (non-HD format) while BU has only the 7.1 track in DTS-HD while the 5.1 and mono tracks are in Dolby Digital (non-HD format).
Fewer extras allows for a higher bitrate, fewer audio tracks allows for a higher max bitrate and a higher average bitrate. I was expecting the BU to be significantly larger.