I'd bought a Buffalo JustStore external HDD in the past and that came pre-formatted to FAT32 (which is needed for it to be recognised by the Playstation 3), however, despite what one of the other reviews says here, when I purchased this Buffalo Drivestation, it arrived preformatted to NTFS, so my PS3 wouldn't recognise it at all. I had to format it myself to FAT32 which took several hours, so I'm knocking a star off for that. Other than that, it's an excellent reliable HDD.