Originally Posted by Usta
The full hd videos can have different sizes, but they are rarely larger than 4GB.
So, you don't have to worry about the file size.
I'm not sure where you get your full HD videos from, but mine (sourced from my own Blu-rays, or saved from DVB-S2 Broadcasts) are invariably much larger than 4GB. In the case of Watchmen it's 38GB!!