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Windows Media Licensing Program: Terminology This page contains terminology related to the Windows Media Licensing Program. Review definitions for the following terms:
Channel
Direct and Indirect License Acquisitions
Interim and Final Product Agreements
Interim and Final Products
PC Software
Windows Media DRM 10 for Portable Devices
Windows Media DRM 10 for Network Devices
Microsoft Device Bridge for Windows Media DRM
ChannelChannel refers to an audio channel. For example, a monaural product uses one channel; a stereo product uses two channels (left and right), and a multi-channel product can use up to five full-frequency channels and one low-frequency effects (LFE) channel. LFE channels are not included in royalty calculations. Therefore, Final Products that support stereo and also include an LFE channel (for example, 2.1 channels) are subject to the royalty per unit fee for two or fewer channels.
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Direct and Indirect License AcquisitionsFor Windows Media Digital Rights Management (DRM) 10 that is shipped with Final Products, the following distinction is made between direct and indirect license acquisition:
Direct or "untethered" license acquisition pertains to devices that can either acquire DRM licenses directly from a license server through a network connection or through a USB connection to a computer.
Indirect or "tethered" license acquisition pertains to devices that can acquire DRM licenses only through a USB connection to a computer.
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Interim and Final Product AgreementsWindows Media components and Windows Media DRM 10 for portable and network devices are licensed under Interim Product Agreements and Final Product Agreements. These agreements correspond to the type of product licensed and provide different rights.
Interim Product Agreement provides access to Microsoft source code implementations, and includes a license to develop and distribute Interim Products.
Final Product Agreement allows licensees to obtain Interim Products, and includes a license to build and distribute Final Products. For Windows Media DRM 10, the Final Product Agreement also includes the ability to request the necessary device certificates.
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Interim and Final ProductsThroughout the Windows Media Licensing Program information, you will see references to "Interim Products" and "Final Products." It is important to clearly understand the difference between these two product types. The Windows Media license agreements contain the following definitions:
Interim Product is a software or hardware product or integrated circuit (for example, a silicon implementation, digital signal processing chip, software SDK, or optical drive mechanism) that is designed to be incorporated into or combined with a Final Product.
Final Product is a software or hardware product in a final form of manufacturing with a fully functional user interface that is intended for distribution to end users (for example, a media player application, cellular phone, motor vehicle radio, portable digital music player, or handheld Internet appliance).
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PC SoftwarePC software refers to software intended for a general purpose personal computer (including laptop, tablet, or desktop) or computer server, on which a general purpose personal computer or computer server both (i) is designed and marketed for operating a wide variety of productivity, entertainment, and/or other software applications from unrelated third-party software vendors; and (ii) runs a general purpose consumer operating system (for example, Microsoft Windows XP, Apple Macintosh OS X, or Red Hat Desktop Linux) or a computer server operating system (for example, Windows Server 2003 or Solaris).
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Windows Media DRM 10 for Portable DevicesWindows Media DRM 10 for Portable Devices (DRM – PD) is a technology that can be implemented on a portable device to allow playback of digital media content that has been protected with Windows Media DRM 10. DRM-PD enables devices to receive and store DRM licenses and enforce DRM rights and policies locally; for example, maintaining play counts, expiration, and metering information. Examples of portable devices include portable media players, mobile phones, and set-top boxes for Internet based video on-demand (VOD) or IPTV services.
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Windows Media DRM 10 for Network DevicesWindows Media DRM 10 for Network Devices (DRM-ND) is a technology that enables the transmitting and playback of streamed digital media content. There are two components of DRM-ND, technology for receiving streamed content (NDR) and for transmitting the streamed content (NDT).
Windows MediaDRM-NDR is the receiver technology that enables the playback of digital media content streamed from a Windows Media DRM-ND transmitter. This technology is designed for devices such as set-top boxes, networked audio-video receivers, digital media receivers, televisions, and automobile head units.
Windows MediaDRM-NDT is the transmitter technology that enables a device that also supports Windows Media DRM-PD to transmit protected content to network devices that can playback the content. Protected content can be streamed to multiple Windows Media DRM-ND receivers simultaneously. This technology is designed for devices such as set-top boxes, mobile phones, and portable media players.
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Microsoft Device Bridge for Windows Media DRMMicrosoft Device Bridge for Windows Media DRM (MSDB) is a technology that enables devices to protect digital media content not originally in a Windows Media format, to generate and issue Windows Media DRM licenses, and to copy the content to Windows Media DRM-PD devices for playback. MSDB can also be used to protect content not originally in a Windows Media format in order to stream the content and issues licenses to WMDRM-ND devices.
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