Elvis Presley would judge the recording quality of his songs by whether the sound “moved him or not,” says music producer Elliot Mazer. After four decades producing some of the recording industry’s biggest artists–everyone from Janis Joplin to Switchfoot–Mazer has developed his own test. He asks himself: “Can you enjoy the music when it’s playing …

Sony is moving to make its music management software compatible with Apple Computer’s audio file format in the latest evidence of Apple’s dominance in digital music. The behemoth Japanese conglomerate, which once controlled the portable music market, announced Tuesday that the company’s data compression technology would be compatible with a number of rival formats, including Apple’s format of choice, AAC. …

RealNetworks’ CEO Rob Glaser makes critical remarks about Apple Computer Chief Steve Jobs, and readers take notice. Glaser described Jobs’ decision to make the iPod compatible only with iTunes music store as “pigheadedness.” Glaser, who made the comments Monday at a conference in Foster City, Calif., would like iPod owners to be able to shop for music at RealNetworks’ music …

SAN FRANCISCO–Rob Glaser has made his peace with Microsoft’s Bill Gates. Now, the RealNetworks chief executive is turning up the rhetoric against another technology icon: Apple Computer CEO Steve Jobs. At the Digital Living Conference here on Monday, Glaser told a packed hotel ballroom that Jobs & Co.’s refusal to make the iPod compatible with music services other than Apple’s …