The ODST Cutscene Library went up quite quickly; it was online within 3 weeks of the game's release, opening its doors on October 11, 2009. Thanks once again to Cody Miller for his help in recording, and to Chris101b for his contribution to the capture of the 1080p versions.
While the flashbacks can be completed in any order (after the first one), we've presented them in the order they appear in-game. When there are variations (because of the difficulty level, or other in-game factors), we've provided all possibilities.
Downloadable versions are 1080p, 720p, and 360p, with 5.1 audio, while streaming versions are 360p with stereo audio. (Some scenes are not available in 1080p; for those, you'll have to make do with 720p. Sorry.)
As of May, 2013, these have been upgraded to surround sound (with two exceptions - a version of the final scene in Data Hive that requires all audio logs to be found, and the easter egg at the very end; these are both still in stereo). Thanks, Cody!
You can view a streaming version of the cutscene by clicking on a thumbnail.
Right-click (option-click on a mac) to download.