Rock Band Unplugged features 41 tracks, all of them master recordings. The game uses the PSP's Wi-Fi capabilities to provide additional downloadable content from music providers through the PlayStation Store. Players can also download new tracks to the PSP through the PC version of the PlayStation Store. Ten songs were made available for download on the day of the game's release, and two new songs are released each week. However, as of November 19, 2009, no further songs have been added to the service; Harmonix, while stating that Unplugged has "run through [its] planned state", has not ruled out future downloadable content but are presently focused on other Rock Band projects. There is no cross-compatibility between music libraries for Rock Band Unplugged and the console versions of Rock