The wire said that Microsoft's Windows Media Data Session Toolkit will let music labels put the songs they're selling onto copy protected CDs in several layers.
Quoting a Microsoft executive, Reuters said that the PC layer which can exist simultaneously with music for stereo systems, can be tweaked by the music labels so that burning copies is impossible.
Both EMI and Universal Music have hailed the move, which is big business.
That includes Sony and Philips, who want to acquire Intertrust - a firm which is allegedly taking Microsoft to court in a suit over digital rights management worth billions of dollars. µ
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