From NeoGAF: If anyone has any other games loaded onto your HDD, please post sizes, and any notes that you may have about improvements/differences.

- All Pro Football 2k8 (5.0 GB)
- Army of Two (5.7 GB)
- Assassin's Creed (6.7 GB) -- Jerusalem load 39.5 seconds (DVD) vs 25 seconds (HDD)
- Battlefield: Bad Company (6.5 GB)
- Battlestations: Midway (5.5 GB)
- Beautiful Katamari (3.4 GB)
- BioShock (6.1 GB) -- Point Prometheus level 35 seconds (DVD) vs 24.5 seconds (HDD)
- Blazing Angels (3.4 GB)
- Blue Dragon (19.9 GB for all disks)
- Brother's in Arms: Hell's Highway (5.2 GB)
- Bullet Witch (5.2 GB)
- Bully: Scholarship Edition (3.4 GB)
- Burnout Revenge (4.4 GB)
- Burnout Paradise (3.4 GB)
- C&C: Tiberium Wars (6.6 GB)
- Call of Duty 2 (6.0 GB) -- saves 2-3 seconds each loadtime
- Call of Duty 3 (5.8 GB)
- Call of Duty 4 (6.7 GB)
- Cars (5.2 GB)
- Civilization Revolution (6.3 GB)
- Clive Barker's Jericho (5.6 GB)
- Colin McRae Dirt (6.4 GB)
- Command & Conquer 3 (3.6GB)
- Condemned (5.4 GB)
- Condemned 2 (6.8 GB)
- Dead or Alive 4 (6.8GB)
- Dead Rising (6.6 GB)
- Dynasty Warriors Gundam (5.6 GB)
- Earth Defense Force 2017 (3.4 GB)
- Eternal Sonata (6.8 GB)
- Fable 2 (6.8 GB) -- the brief pause/lag when accessing inventory menus is gone or noticeably reduced
- Fallout 3 (5.9 GB)
- FIFA 09 (6.0 GB)
- Fight Night Round 3 (3.4 GB)
- Flatout Ultimate Carnage (4.9 GB)
- Forza 2 (5.3 GB)
- Full Auto (3.4 GB)
- Gears of War (6.5 GB)
- Gears of War 2 (6.7 GB)
- Ghost Recon: Advance Warfighter (5.2 GB)
- Ghost Recon: Advance Warfighter 2 (6.8 GB)
- Grand Theft Auto IV (6.7 GB) -- decreases initial load time from 46.5 to 33 seconds
- GRID (6.6 GB)
- Hitman: Blood Money (5.8 GB)
- Halo 3 (6.3 GB) -- load times are apparently worse (10 seconds longer) when installed
- Infinite Undiscovery (12.5 GB for both discs, disc 1 6GB disc 2 6.5GB)
- Kameo (5.9 GB)
- King Kong (6.5 GB)
- Lord of the Rings: Battle For Middle Earth (4.4 GB)
- Lost Planet (6.8 GB)
- Lost: Via Domus (4.2 GB)
- Lost Odyssey (23.2 GB for all discs) -- 2 to 3 times faster playing off HDD (video)
- Mass Effect (6.8 GB) -- No more "Loading" pauses when moving too fast. Elevator load times are identical (hardcoded)
- Mercenaries 2 (6.7 GB)
- Midnight Club: LA (6.0 GB)
- Need for Speed Most Wanted (6.8 GB)
- NHL 09 (5.7 GB)
- Ninja Gaiden II (6.8 GB) -- 125 seconds initial load on DVD, 45 seconds off HDD. No loading when selecting a weapon from quick switch menu
- Perfect Dark Zero (4.9 GB)
- Pro Evolution Soccer 6 (3.4 GB)
- Project Gotham Racing 3 (6.2 GB)
- Project Gotham Racing 4 (6.0 GB)
- Rainbow Six Vegas (6.7 GB)
- Ridge Racer 6 (6.5 GB)
- Rock Band (6.3 GB)
- Saints Row (6.8 GB)
- Saints Row 2 (6.8 GB)
- Scene It (6.8 GB)
- SEGA Rally (4.2 GB)
- Shadowrun (4.3 GB)
- Splinter Cell: Double Agent (6.8 GB)
- Star Trek Legacy (5.7 GB)
- Stranglehold (6.7 GB)
- Stuntman Ignition (5.8 GB)
- Table Tennis (3.4 GB)
- The Club (5.2 GB)
- The Darkness (6.8 GB)
- The Elder Scrolls IV: Oblivion (6.7 GB) -- Great Forest loadtime 44.5 seconds (DVD) vs 31 seconds (HDD)
- The Orange Box (4.7 GB) -- HL2 load time cut in half (44.5 vs 25.5 seconds), loading saved game 'We don't go there any more' shaved off 32 seconds
- Tiger Woods PGA Tour 09 (6.0 GB)
- Tomb Raider Anniversary (6.4 GB)
- Tomb Raider Legend (6.7 GB)
- Tony Hawk's American Wasteland (5.0 GB)
- Too Human (6.2 GB)
- Unreal Tournament 3 (6.4 GB)
- Virtua Fighter 5 (4.7 GB)
- Virtua Tennis 3 (4.1 GB)
- Viva Piñata (5.0 GB)
- Viva Pinata: Trouble in Paradise (5.2 GB)
- Warriors Orochi (6.4 GB)
- Warriors Orochi 2 (6.8 GB)
- Wartech Senko no Ronde (3.4GB)
- WWE Smackdown vs Raw 2007 (6.8 GB)
- WWE Smackdown vs Raw 2008 (5.8 GB)
- WWE Smackdown vs Raw 2009 (6.6 GB)
- Xbox Live Arcade Compilation Disc (5.9 GB)

Games "not supported" for installation
When you try to install these games you'll get an error that says "Installation of this game is not supported."

- Burger King trilogy - Big Bumpin, Pocketbike Racer, Sneak King
- Crackdown

- Dead or Alive Xtreme Beach Volleyball 2

- Quake II (included on Quake IV bonus disk)

What? Halo3 is worse by 10 seconds? how can that be possible?

I was going to install LO also, but I just realized that I have a 20gb system... >_>

This thread should be stickied.

i need it for mass effect.

Since the most any game has put on a disc is 6.8 gbs, I'ma assume everyone's been right that Microsoft reserves 3.2 gbs for copy protection--weird.

halo is slower? I'll believe it when I see it but until I install it myself I'm going to call bullshit on that.

Do these have to be loaded on an MS formatted drive or can you load them on any USB Drive? I would assume that since you have to have the original disk in, that you can load them on any drive.

But I would like to know for certain. If it is any USB drive I am gonna go buy a terrabyte drive and put my favourite games on it.

My crystal ball tells me MS is going to sell a lot of large HDDs pretty soon...

Machina-AX:

If your 360 is loud due to the DVD drive, then yes, it reduces the noise. As far as I've heard, the noise from a X360 is almost non-existant.

Any info on the load time of skipping a taxi ride in GTAIV, please?

Made me sick when I saw my mate's PS3 GTA taxi ride skip was like 2 seconds compared to the 360's 12 seconds (times are an approximation and shouldn't be held at face value).

Eurogamer says it loads slower as well.

http://www.eurogamer.net/article.php?article_id=290745&page=2