This page provides an overview of the current
direction of the Connected Media Experience draft specifications.
purpose of the Connected Media Experience standard is to ensure compatibility
between compliant devices and content, and between different functional
components of the system architecture, such as client devices and service
providers. The architecture is designed so that there are no global centralized
components. Instead, the architecture can be federated, and compliant
implementations can coexist and interoperate. Where possible, the standard
uses existing and free technology.
There are four main components of the Connected Media Experience architecture:
The package contains or references
all the media assets for a specific release. A release may be a music
single or album, TV series, movie, magazine, and so on. Content authors will determine which elements in the package
are downloaded, and which are accessible on-line. A content owner may also determine that on-line aspects of the package require verification of a digital proof-of-purchase.
A Connected Media Experience
service provider acts as the hub for the online
components and validates the proof-of-purchase, if necessary. Service providers can be specified on a release-by-release
It is expected that Connected Media Experience products will be
made available in a variety of ways, including through normal digital retail
Connected Media Experience packages are rendered by client software or hardware.
The client periodically checks for package updates, and upon user request, obtains them by
communicating with the Connected Media Experience service provider.
I) The Package
The Connected Media Experience package is
a zipped collection of files, including media assets (e.g., MP3 files), a manifest that
includes metadata and describes the assets, an optional proof of purchase, and a description of one or more
To ensure compatibility, the Connected Media
Experience standard mandates that all assets be available in widely compatible
formats to make certain that the baseline experience is available on all devices
labeled as being compatible with the Connected Media Experience standard.
Though not final, the baseline formats might include
REST, RSS, Atom
Connected Media Experience functionality such as access
to certain online content and services can be limited to packages with a valid digital proof of purchase.
The proof of purchase is generated
and inserted into the CME package by digital retailers and/or their content delivery networks
(CDNs) prior to download.
The manifest is an XML document incorporated into the package that
describes the primary media assets (e.g. audio tracks, videos) contained within a release. XML was chosen for flexibility and
other technologies (e.g., Flash or Silverlight) if the client supports
Retailer / Distributor
Connected Media Experience products can be merchandised
and sold alongside conventional digital products. Retailers and other distributors will typically provide the user with the entire CME package, containing the primary media assets (e.g. audio tracks), the user interface, and the digital proof-of-purchase. The service provider (described below) ensures that
all the appropriate on-line assets are available.III) The
The Connected Media Experience client is responsible for displaying packages. Since the package
can be updated by the content owner at any time, the client is
responsible for periodically checking with the service provider for updates. If the user ops into an update, the client will download and install it. The client also provides services to the package, such as facilitating transfer of the proof-of-purchase to the service provider so the user can obtain access to certain on-line content, if applicable. Clients are also able to check package integrity through a digital signature.IV)
The Service Provider
The Connected Media Experience service
provider is responsible for coordinating access to online assets and data,
communicating package updates to clients, and verifying proof-of-purchases, if required. Online
content may be available for download or streaming. Some of it may originate
from the service, or the service may simply serve as an aggregation point and
reference online content hosted elsewhere on the Internet. Content updates may
consist of new assets (e.g., a new video or audio remix) or data feeds.