According to Impress Watch, Valkyria offer players the option for a hard disk install. The install takes up 3,336 MB and apparently cuts down load times from the 15 second waits players would otherwise have to sit through when opting to play directly from disc.
As with last month's Ryu ga Gotoku Kenzan install, this install is strictly optional, so those who can't find enough space on their hard disk will still be able to play.
