Please forgive me for asking

[Teazle]

Originally Posted by lch

what is 'default bit rate' ?
if there such a thing, the 'default bit rate' will be the raw picture of each and every single frame uncompress with a resolution of 4k and multiply by 24 frame/sec.
Some studio use your lower bit rate of 24Mbps such as warner so that they can fit the movie to both medium to save their time from encoding 2nd time and save money. but this stuff some of the movie. and although hd 'interactive' spec is so well define, they don't have enough bandwidth to implement it in HD.

In addition, re: the silly part about it somehow costing more to encode at a higher bit rate -- compressing video is not like writing pulp fiction where you are paid by the word. Encoders do not invoice by the bit.