Activision Blizzard is reporting that sales of tracks on the Guitar Hero platform have tripled on average.

Some examples from last year:

• Guns N’ Roses, “Welcome to the Jungle” (1987), Geffen, released on “Guitar Hero III” Oct. 27, 2007: 38,000 downloads, up 153 percent.
• Pat Benatar, “Hit Me With Your Best Shot” (1980), Chrysalis, released on “Guitar Hero III,” Oct. 27, 2007: 9,800 downloads, up 180 percent.
• Aerosmith, “Dream On” (1973), Columbia, released on “Guitar Hero III,” Oct. 27, 2007: 10,000 downloads, up 15 percent.
• Red Hot Chili Peppers, “Suck My Kiss” (1992), Warner Bros., released on “Guitar Hero III,” Oct. 27, 2007: 3,900 downloads, up 200 percent.
• Nirvana, “In Bloom” (1992), DGC, released on “Rock Band,” Nov. 20, 2007: 9,000 downloads, up 543 percent.
• KISS, “Detroit Rock City” (1976), Casablanca, released on “Rock Band,” Nov. 20, 2007: 3,400 downloads, up 89 percent.
• David Bowie, “Suffragette City” (1976), RCA, released on “Rock Band,” Nov. 20, 2007: 1,700 downloads, up 55 percent.
• R.E.M., “Orange Crush” (1988), Warner Bros., released on “Rock Band,” Nov. 20, 2007: 3,200 downloads, up 256 percent.
• Smashing Pumpkins, “Cherub Rock” (1993), Virgin, released on “Rock Band” on Nov. 20, 2007: 6,600 downloads, up 843 percent.