That said, we've always been fan of the optional installs found in PS3 games like Ridge Racer 7, Virtua Fighter 5, and more recently, Disney's excellent Pure.
You've still got that instant accessibility that is a fundamental part of console gaming, but if you want your games to load faster, and you're willing to deal with the hassles of deleting content to let your new games run, the option is there.
The measurements below speak for themselves; on all of the major Half-Life 2 games, loading times are often twice as fast, while the lighter content additions to the Orange Box feature far fewer benefits.
(I use the term "title" which you can read as "movie", its a habit I have got into from working on this for the last few years and is hard to break - forgive me).
If this happens when you try to start the disc then it means critical data could not be read.
It also forces you to manage hard disk space efficiently, especially if you have a lower-capacity drive in your PS3.
There's also the fact that once you've deleted your game install, as you inevitably will in order to get more mandatory installs onto your hard disk, you'll need to wait 25 minutes if, for example, you fancy a one-off late-night blast on Devil May Cry 4 sometime in the future.
Gears 2 is therefore multiplexing video and audio data with the maps in one file streamed off the hard disk.
That being the case, the tangible benefits of installing the game to HDD effectively amount to loading the game, restoring your save position or accessing multiplayer options, all of which are covered in our measurements.
As you can see, Epic's streaming is extremely well optimised for playing from disc, to the point where the hard disk installation barely makes any positive impact whatsoever, aside from saving yourself the odd second here and there, and of course reducing the volume of your Xbox 360. Despite featuring five different games in one phenomenal package, The Orange Box in its entirety fills only 4.7GB of the theoretical 6.8GB limit imposed by an Xbox 360-formatted dual-layer DVD.
It's also one of the few games where performance is hugely improved by the installation.
The Xbox player is pretty good at recovering from read errors once the movie starts, but read errors in critical areas of the disc used to start it up will cause this error.