I reckon youtube is going to get swamped with, "check my [insert whatever awesome thing you think you did here]" and people are going to be sick of watching videos of headshots and all other types of junk, anyway, I think in general 5minutes should be fine, If you need longer I'm sure you're not the "average" gamer and will use the HD recorders going around, 5min for me would be just fine(would've liked 15min, same as PS4 but ahhh...does it reaaaaally matter to me? nope! :P )
