The following documents just became available for download from the SMPTE website:
Trial Publication of SMPTE 421M PROPOSED SMPTE STANDARD for Television:
VC-1 Compressed Video Bitstream Format and Decoding Process
Trial Publication of RP 227 PROPOSED SMPTE RECOMMENDED PRACTICE for Television:
VC-1 Bitstream Transport Encodings
Trial Publication of RP 228 PROPOSED SMPTE RECOMMENDED PRACTICE for Television:
VC-1 Decoder and Bitstream Conformance
VC-1 is also known as Windows Media Video 9. See this screenshot of VLC playing the Shuttle Discovery Launch video using the VC-1 reference decoder under GNU/Linux.
The reference decoder won’t be publicly available until VC-1 becomes a SMPTE standard. Update: the reference decoder is now publicly available at smpte-vc1.org.