The deal may also lock down content further. According to one carrier, music purchased from its music store may already be shared between a PC and the phone, although the purchase allows two copies of the song to be downloaded, one each to the phone and the PC.

The deal would allow OMA DRM 2.0 protected content to be exported from mobile handsets to the PC and played using Windows Media Player. CoreMedia said it had integrated the Windows Media DRM SDK into its own content protection technology and rights-management technology, enabling the secure handoff of content.