Attorneys for consumers and electronics retailers claim Apple Inc used software in its iTunes store that forced would-be song buyers to use iPods instead of cheaper music players made by rivals.
The software is no longer used, but the plaintiffs argue that it inflated the prices of millions of iPods sold between 2006 and 2009 to the tune of USD 350 million.
Under federal antitrust law, the tech giant could be ordered to pay three times that amount if the jury agrees with the estimate and finds the damages resulted from anti-competitive behavior.
"The fact that this case is still going 10 years later is a sign that technology often outpaces law," said Mark Lemley, a Stanford law professor.
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Attorneys are set to make opening statements tomorrow morning in the Oakland, California courtroom of US District Judge Yvonne Gonzalez Rogers.
The case harkens back to the early days of digital music and portable devices, when Apple quickly became the world's biggest legal seller of downloaded songs after launching its iTunes store in 2003.
But Apple's FairPlay was incompatible with anti-copying code used by other online music sellers, such as the RealPlayer Music Store operated by RealNetworks, an Internet streaming company based in Seattle. As a result, songs from rival online stores could not be played on iPods, and songs purchased on iTunes could not be played on competing portable devices, including Microsoft's Zune and Diamond Multimedia's Rio music player.