Upon the initial release of Rock Band, many players reported that the guitar peripheral stops registering down-strokes shortly after initial use. The problem was acknowledged by EA, the game's distributor, as a manufacturing problem and a system was quickly put in place to replace any faulty guitars still covered by the initial 60-day warranty.Kotaku: Harmonix Replacing Broken Rock Band Guitars(November 28, 2007) Some gamers also experienced a delay in receiving their replacement guitars and they were offered a free copy of an EA game in compensation.Joystiq: Rock Band team offers free EA game for guitar repair delays (December 2, 2007)