Hi, I'm going to be travelling soon and will be on a long flight. I'm wondering if anyone knows of a particular App and Codec/Container combination that will optimise my Macbook Pro's battery life so that i can watch what i want? Currently i'm just using VLC and .mp4's converted via Handbrake, i can usually get around 2+1/2 - 3 hours on a medium brightness. Keeping in mind the flight is around 9 hours, i would like a little longer if possible. I don't have the money to spend on any of these HyperJuice batteries or the like, just after a free boost if possible. Up to date specs in the signature. Thanks!