While we knew that the PS4 would automatically record the last fifteen minutes of whatever you’re playing – so that you won’t miss out on any amazing moments you wanted to rewatch – we weren’t sure of just how long you could record manually for.
It appears that you’re only limited by the size of your hard drive, according to a commenter on a Kotaku article, as found by NeoGAF. He’s apparently working at a studio developing PS4 games and says that, as long as you’re actively recording or streaming, “you’re virtually unlimited” in regard to how long you can record for.
He also suggests that current capture cards – such as the ones used on current generation consoles and PC – will work with PS4, meaning you’re not limited by the PS4’s own recording features.
Presumably there’s still a limit on how much you can upload to your PSN profile, but if he is to be believed, then you’re able to export and upload elsewhere – you’ll be able to edit in an outside program and upload to YouTube instead, which could be great for video enthusiasts.
Of course, this might not necessarily be true, and it might just be development kit specific – anything could change leading up to the PS4’s release.