Sony sees the deal in part as a way to promote its ATRAC sound compression format and OpenMG
copyright protection technology.
The collaboration involves Sony's MagicGate and OpenMG
copyright protection technologies and IBM's Electronic Music Management System (EMMS), an e-business solution for the sale and downloading of music through computers, the two companies said.
MagicGate and its counterpart OpenMG
will employ microchips embedded in hardware devices that ensure copyrighted material is encrypted and is "moved" rather than copied.