I figured out how to encode the alpha channel out of AFX and I’m feeling pretty dumb, you just select RGB+Alpha from the drop down list. I don’t know why I was thinking there was a checkbox b/c I don’t think there was one in CS3 (maybe I was picturing Encoder).
So my first issue is resolved, but I’d still like to know how to solve the Media Encoder problem if anyone has any suggestions. Again, the problem is I can’t import AFX comps into Encoder (crashes) and I can’t export Premiere sequences at all (Encoder tells me “Encoding Failed. Could not read from the source”).
I tried the following possible solution but it didn’t work. The next possible solution is to reinstall CS4, but I’d like to avoid that if any one has any suggestions. Thanks.
Solution 1: Create a shortcut to the Premiere Pro executable file, rename the shortcut to Premiere, and move the shortcut to C:\Program Files\Common Files\Adobe\dynamiclink.
1. Close all Adobe applications.
2. In Windows Explorer, navigate to C:\Program Files\Adobe\Adobe Premiere Pro CS4. (If you installed Premiere Pro CS4 in a location other than the default of C:\Program Files\Adobe, then navigate to your custom installation location.)
3. Right-click on Adobe Premiere Pro.exe (which might appear without the .exe extension) and choose Create Shortcut.
4. Rename the newly created shortcut to just Premiere.
Important: The name of the shortcut must be exactly Premiere with no other characters.
5. Open a second Windows Explorer window, and navigate to C:\Program Files\Common Files\Adobe\dynamiclink.
6. Move the Premiere shortcut that you created into the dynamiclink folder.
Thanks.