Microsoft is working on finishing new storage-focused feature pack, which’s part of the company’s Storage 1.0 platform that’ll add new Blu-Ray media and smart-card driver functionality to Windows XP, Windows Vista, Windows Server 2003 and Windows Server 2008.

From Microsoft Connect site:

“There are 3 technologies available for this Pre-Release. Each will have its own installer:

• “Active Storage Platform: This pre-release package enables the Windows platform to restrict access to portable devices (such as a USB Flash Device) via a certificate or password authentication based on the IEEE 1667 standard specification.
• “Image Mastering API update for Blu-Ray media: This feature enables the Windows platform to do master style optical burning on Blu-Ray media.
• “Smart Card Driver: This release provides support for new form factors, such as ICCD/CCID.

Source:→ Mary Jo Foley's Blog