Why aren't all movies authored on 50 gig Blu-ray

[JadedRaverLA]

Originally Posted by DetroitSportsFan

Apparently some releases don't require the full 50GB.

I can't think of ANY release that uses 50GB of space (most dual-layered discs are 30-40GB). Anyway, if you have a short title and limited special features, the production house likely couldn't get the disc over 25GB in size even if they maxed out the video bitrate throughout the movie.

Also, there is a (not insignificant) cost-differential between producing single layer and dual layer discs. In addition, many of the Blu-ray disc production lines installed currently are only capable of producing single layer discs, though that will be changing as time goes on.