If you are looking for the version with physical collectibles, you likely mean the , which includes:
: A CD featuring an hour of music from the game's score and a "Scoring of Dead Space 2" featurette. Dead Space 2 Limited Edition
The was a special retail version primarily released for the PlayStation 3, though it is often confused with the more comprehensive Collector's Edition available across multiple platforms. PlayStation 3 Limited Edition Contents If you are looking for the version with