Orlando, Fla. - PacketVideo, a unit of NextWave Wireless that develops mobile multimedia distribution technology, announced on Tuesday that it has acquired Switzerland-based SDC, a developer of mobile digital rights management and a Java-based mobile music application.

London - Mobile music distributor SDC said on Friday that it has partnered with mobile advertising developer Amobee Media Systems on technology that will serve contextual and targeted opt-in ads to mobile music services. SDC has integrated Amobee's technology that enables DRM music players to receive ads from Amobee's server. London-based SDC's mobile music services are deployed with 20 wireless carriers.