why does UHD BD require a specialized optical drive?
>>59474828
Piracy
>>59474828
Because lasers
>>59474828
Even if encoding method were kept the same, the electronics have to keep up with 4x the data flow, which the drives likely weren't equipped to do.
>>59474828
who
>>59474828
Because they use different (BDXL) discs which support up to 100GB, as opposed to 25/50GB of single/dual layer BD discs.
Because of the new (((Technologies))) like AACSv2.
>>59475479
how many layers?
,