Windows Media DRM
Device Ecosystem
For Windows Vista
Milan Gada – Program Manager
Kevin Lau – Program Manager
Windows Media (Content Access Technologies)
Microsoft Corporation
Agenda
Windows Media DRM overview
Windows Vista Content Protection
Infrastructure
Windows Media Devices Technologies
Future roadmap
Discussion
Windows Media (WM) DRM
Comprehensive DRM system
Enables multiple digital media
business models
One-time purchase
Subscription
Rentals
Enables various user scenarios on
PC and devices
Storage and playback of premium content
Streaming of premium content
In use by many content service providers
Napster, Yahoo Music, Movielink, and more…
WMDRM Technologies
Porting Kits (PK)
ANSI C source code, whitepapers, tools,
and documentation
WMDRM-Portable Device (PD)
WMDRM-Network Device (ND)
Software Development Kits (SDK)
Format SDK – PC applications
RM SDK – Rights Management Server
WMDRM Ecosystem
PC – Organized and Play
Premium Content
Burn
(Music CD)
Network Devices
(WMDRM-ND)
Remoted UI
and playback
(MCX)
Indirect License
Acquisition
Playback on CE device
(WMDRM-ND)
Direct License
Acquisition
Copy
Stream
Portable Devices
(WMDRM-PD)
Windows Vista Content
Protection Infrastructure
Protected Media Path (PMP)
Strengthen platform robustness for
next-generation content (e.g., AACS)
Interoperates with other protection systems
(e.g., DTCP)
Improved protection against content piracy
Improved control of PC AV outputs
Protects content crossing user accessible bus
Process media in a protected environment
PMP Overview
Application
Command/Control
Protected Video Path
Media Interoperability Gateway
Video
Decryptor
Media
Source
Input Trust
Authority
Input Trust
Authority
Audio
Decryptor
Video
Decoder
Policy
Engine
Audio
Decoder
Video
Sink
PE
Video
Compositor
Kernel
Graphics
Device
Output Trust
Authority
Output Trust
Authority
Protected User Mode Audio
Audio
Sink
PE
User Mode
Audio
Kernel
Audio
Device
Media Interoperability Gateway
Extensible platform for sourcing, sinking
and manipulating protected media content
Governs policy usage
Run media in separate process
Secure Transcoding
PMP provides a safe environment for Secure
Transcoding of DRM protected content
Transcoding of content can occur on the fly
Copying via WMDRM-PD or
Streaming via WMDRM-ND or
Can be pre-cached
User scenario example
Recording in 5.1 Dolby Surround
Want to play on a portable device with stereo
Rapid Rights Query
Enables fast access to DRM rights
for particular content
Makes smart decisions on how
to present content
Allows display views based on DRM
Rights – e.g., license required
DRM intelligently caches data
to optimize performance
Windows Media Player 11
Synchronization To PD
PC To PC Streaming
Share your protected content in your
home ecosystem
No longer need to know what computer
the content is on
No need to acquire a new license from
service provider
Uses WMDRM-ND Technology
PC To PC Streaming
Milan Gada
Program Manager
Windows Media
Windows Media Devices
Technologies
WMDRM Portable Devices
WMDRM Portable Devices
Store and playback WMDRM protected audio
and video content
Provides support for
Indirect License and Direct License Acquisition
Time and count based usage models
Currently
PlaysForSure – Logo Certification Program
Ensures device and service interoperability
There are more than 20 device OEMs
with PlaysForSure devices
E.g., iRiver, Creative, Samsung… etc.
There are 115+ PlaysForSure devices
Direct License Acquisition
Acquire licenses for protected content
directly from your device
Acquire content whenever you want,
where ever you are…
PC interaction not required
WMDRM-PD Porting Kit enables
this scenario
Internet
Verizon VCast DLA
Kevin Lau
Program Manager
Windows Media
WMDRM Network Devices
Stream protected content
From PC to Network Devices
Between Network Devices
E.g., Xbox 360, Roku Soundbridge, DLink
DSM 320, etc.
Device To Device Streaming
Stream protected audio content from
a portable device to a WMDRM-ND
receiver device using MTP over USB
Enables users to play protected content
While playing games on Xbox 360
While driving on your car stereo
WMDRM-ND Porting Kits enable
this scenario
Device To Device
Streaming
Milan Gada
Program Manager
Windows Media
Future Roadmap
WMDRM-PD Updates
Strong focus on Mobile space!
CTIA ‘06 – announced significant investment
Some current partners
Nokia
Motorola
Verizon
Working for a seamless user experience
WMDRM-ND Updates
Transmitter
Video support
Transmission on any transport layer
Multiple receiver support
Receiver
License chaining
Copy From Device
Enable devices to encrypt media
with WMDRM
Enable devices to issue WMDRM licenses
with simple policy
Over MTP/USB only
License will be in WMDRM-PD format
License will be bound to receiving
WMDRM-PD device
Porting kit will be available by end
of this 2006
Call To Action
Make use of Windows Vista WMDRM
technologies to
Build exciting new user scenarios
Deliver premium content to the PC
Make use of WMDRM Porting Kits to
Build great device experiences
Enable premium content flow in home ecosystem
Ask your questions
Ask the experts or
E-mail: askdmd @ microsoft.com
Additional Resources
Web Resources
DRM
http://microsoft.com/windows/windowsmedia/drm/
default.mspx
PlaysForSure
http://www.playsforsure.com
WM Licensing
http://www.microsoft.com/windows/windowsmedia
/licensing/default.mspx
For questions: askdmd @ microsoft.com
Discussion
© 2006 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
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