A Double-Standard for Jay-Z and Kanye West?

More money, more problems.

Most kings get their heads cut off — or at least, so goes the chorus of Jay-Z and Chris Martin's duet "Most Kings." For the Empire State of Mind rapper, though, the sentiment appears to be figuratively true of late.

Yesterday a group of independent record store owners released an open letter to Jay-Z and Kanye West in protest of the duo's plans for collaborative album Watch the Throne, due out in August. At issue: a four-day window granted to Apple's iTunes from...