This requirements document is limited to the storage@ reception@ manipulation@ and display of contents on the primary IPTV Receiving Device (e.g.@ STB and multi-room DVR)@ and will not include requirements for either content re-distribution to other devices in the home (e.g.@ portable devices@ PCs) or DRM of the content on such other devices in the home. Also@ this document will not include further distribution of the content to parties other than the original consumer. However@ ATIS-0800055@ DRM Interoperability Requirements for the Distribution of Content in the Subscriber's Authorized Service Domain@ will address content re-distribution to other devices in the home (e.g.@ portable devices@ PCs) and DRM of the content on such other devices.