I have seen a lot of question regarding the gamma shift issue when encoding into h.264 quick time movies.
Wouldn’t it be nice to stick a thread on top of this forum containing a solution?
After rendering into a QuickTime/h.264 file, open it up in QuickTime and select “Show Movie Properties.” Highlight the video track then click on the “Visual Settings” tab.
Towards the bottom left you should see “Transparency” with a drop-down box next to it.
Select “Blend” from the menu then move the “Transparency Level” slider to 100%. Choose “Straight Alpha” from the same drop-down and close the properties window and finally “Save.”
requires QuickTime Pro
regards to mitchgates for the original posting