The guys over at 360gamesaves.com have discovered that Xbox Live Arcade titles will execute from CD/DVD-R media, if the correct directory structure is burned. Now, the titles will still run in trial mode, unless the console owner has previously purchased the content. For gamers without the Xbox 360 Hard Drive, though, this may be a good way to play around with the trial versions of Arcade titles if they have a friend willing to download the games and burn them to disc.