From Microsoft Watch: Wondering what Microsoft's next-generation DRM scheme is all about? Wonder no further. Microsoft is set to offer a "public preview" beta release of "Janus" as part of the Windows Media Player download it's due to release on Wednesday. We've been collecting more Janus tidbits since Microsoft confirmed the code name in early May. Here's what we know so far. Meanwhile, to test the public beta of Windows Media Player 10, download the bits from here.