# Presentation: 690196

## Digital Content ProtectionOverview

- April 26, 2002

- Current digital media landscape
- Current/emerging protection measures
- Future trends
- Issues

## Digital Media Landscape

- Content         Pipes                    Players        User interface      Users

- Storage

## Content Types

- Audio-visual
- Sound
- Interactive
- Executables
- Text
- Other data

## Digital distribution pipes

- Narrowband phone
- Broadband (Cable/DSL/Satellite)
- Cable
- DBS
- Broadcast (Digital TV/Radio/Datacasting)
- Wireless 2 way nets
- 2.5/3G cell
- 802.11x hot spots
- LMDS/MMDS

## Players

- PC’s/Info appliances
- TV STB’s (Digital cable/VDSL/PVR’s/ITV)
- DVD/DVD-R
- D-VHS
- i-DVD
- Game console
- CD
- MP3
- MP4
- PDA’s
- Cell phones

## Digital storage media

- DVD
- CD
- D-VHS
- DAT
- Removeable Mag disc
- Hard Mag Disc
- Flash RAM/ROM
- Non volatile-RAM
- Micro-optical

## User interface

- TV
- Stereo
- PC display
- Phone display
- PDA display

## Users

- Primary
- consumers
- Secondary
- Libraries
- Teachers/Students
- Researchers/Developers
- Special needs
- Disabled

##  Current protection measures

- Audio-visual
- Stored media
- DVD CSS
- Macrovision
- D-VHS D-Theatre
- Cable /satellite
- Conditional access systems (W/return path)
- Web
- Proprietary DRM’s  (e.g. Microsoft MRM)
- Open rights languages (XRML, ORDL)

##  Emerging protection measures

- Audio-visual
- Stored media (DVD’s, PVR’s)
- CPRM/4C
- DTCP/5C
- D-Theater
- HDCP/DVI
- HDMI
- Cable /satellite
- POD’s
- STB protections
- 4C/5C/
- HDCP/HDMI/DVI
- PHILA/OCAP
- Broadcast
- Flags
- Watermarks (e.g. CPRM/4C)
- Web
- Secure PC

##  Current protection measures

- Audio
- Stored media/recorders
- Legislation (DMCA, AHRA)
- CD copy protect (e.g. Cactus Data Shield)
- CGMS, SCMS
- SDMI
- Web
- Proprietary DRM’s  (e.g. Microsoft MRM)
- Open rights languages (XRML, ORDL)
- Secure audio path

##  Emerging protection measures

- Music/Audio
- Stored media/recorders
- Watermarks for playback/copy control (e.g. Verance)
- DVD-audio CSS-2
- Web
- Secure PC

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## Marked Content accompanied by DRM

- Un- Marked Content **not **accompanied by DRM

- Marked Content **not** accompanied by DRM

## Future trends

- All different player types connected in home
- Storage media portable between different player types
- Moore’s law will aggravate piracy problem
- Faster pipes
- Better compression
- Bigger memories
- Smaller storage
- New potential “fair uses” of rich media (distance learning)
- New players (e.g. MP4), pipes (Digital Terrestrial Broadcast), media types (e.g. Interactive TV)will emerge
- Consumers growing up with belief that “ sharing of licensed content with others is OK”

## Issues

- Protection of unsecured content in peer-to-peer networks
- Affordable protection in devices (e.g. PC’s) with many inputs, internal data paths, storage devices, data types and outputs
- Renewability/extensibility of new measures
- Managing the legacy problem while enabling responsible innovation
- Interoperability of proprietary DRM’s and other protections
- Public vs. private ownership
- Role of government
- Number of distinct measures needed to accommodate variability of compute power, memory, display performance, return path etc
- Accommodating fair use and potential fair use applications
- Consumer time shifting/portability, distance learning
- Digital “check out” from libraries
- Achieving Multiple lines of defense for unsecured content
- Playback control
- Copy control
- Transmission control
- Forensic tracking
- Renewability/revocability of all of above
- Enabling new business models (e.g. super-distribution)