hrm... Well lets see... My Stepbrother has enough mp3's to play for 79hours 32minutes and 17 seconds lest I checked... divied that by an average 3:14 (194 seconds) track time...

[79(60*60)+32(60)+17]/194 =
[284400 + 1920 + 17] /194 = 286337 / 194 = 1476

So... He wouold owe the RIAA $221,400,000