How many CS Increments will it take to handle ProRes Correctly

Two Simpleton-tests with AE 5.5 revealing that AE still hasn't learned a darn thing in regards to the ProRes Codec
Test 1:
1) Import ANY Canon 5DMKII into AE CS5.5
2) Add it to a new Comp
3) Add that comp to the render queue
4) Select ProRes 4444 as output codec
5) Render and compare with your original Canon Footage
Expected Result in the Quicktime Player 7:
The ProRes File Should look somewhat like the original.
It does NOT.
Actual Result
Gamma is WRONG
Color is slighty shifted
And Noise/banding has been increased significantly.
Test 2:
1) Open Apple's Compressor
2) Import the same Canon File
3) Setup a 4444 Codec like in AE
4) Render out
Expected Result in the Quicktime Player 7:
The ProRes File Should look somewhat like the original.
It does.
Actual Result
ProRes transcode looks 100% identical to the source
Test 2 Expanded
Import the Compressor-created 4444 file into AE and repeat test 1
Expected Result in the Quicktime Player 7:
The ProRes File Should look somewhat like the Compressor-Created file.
It does NOT.
Actual Result
Gamma is TOTALLY WRONG
Color is LESS shifted than when exporting the Canon file directly
Noise/banding is MORE than the compressor created file but LESS than when exporting the canon file directly...
I am more or less speechless. I have been reading about this problem on a million blogs. Including adobe's own.
Since at least since CS3. There have been several invain work-arounds. And now this. CS 5.5 - with the same problem.
Adobe, how many versions do you need to get it right.
Perhaps, you could look a little a Apple's technology, as it seems to be much more effective and advanced than yours.

Hi Rick,
first things FIRST ;-)
Thank you very much for taking the time to make that post.
My color settings in AE are correct. And I am using a color managed workflow -)
It plays NO PART whether I enable the "Use Legacy Gamma"....
Your example is correct in BUT it only applies to the realm in which you created it > RGB
and it does not exhibit temporal H264 artifacts stemming from a YUV 4:2:0 (609 Color Space) Matrix
You dont exaclty round-trip the way that I was describing a rountrip in my initial post.
I know that a ramp can reveal certain things but it is a highly virtual comparison and does not really apply to live-worl  footage.
At least in this case ;-)
You take RGB-generated grays and then output to ProRes
I took a YUV-color-realm movie entered into the realm of RGB (AE) and then exported to ProRes
And THAT is where the problem lies.
I am uploading the file in question. It is a movie from the 5DMKII.
That is the source I have been testing with all along.
It is great in that it has a dark area with quite a bit of noise. THAT noise after AE has encoded it to ProRes will look banded and become worse.
Not so when encoding with Compressor.
Besides, and this I cannot wrap my head around, when compressor is compressing the exact same file it is 295MB in size but when doing it with AE it is 413.
Something wrong there ?
Anyway, here is the link to the file if you wanna try with that.
I am uploading a screen shot to show you which area you should look out for.
And rememeber this is NOT visible when looking at it in AE. you HAVE to rountrip and open the source and the rountripped file in the Quicktime Player.
Remember, most folks are WATCHING the movies in the quicktime player on OS X... So I would LIKE my files looking identical to the source when watched in the QT player. I dont believe that any consumer out there, just aiming to watch a movie has AE installed so that he can watch the movie in the way I (all AE users) intended it to look.
Adobe we NEED this to work.
When/if you do the test - make a real world comparison.
Open the Original source in AE and out-encode it to PR4444.
Then open the quicktime player and load up both (PR4444 and ORG source)
Put them on top of each other and flip back n forth. Huge difference in the area that I have hi-lighted in SS below.
The noise in the original is very present in the original file in that area...
When looking at adobes encode the noise has become large square fields(almost) looks a little like banding.
When using Apple's compressor to rountrip it looks exactly like original.
Might I add, taking the original file and opening it directly in AME (bypassing AE altogether) will have the same impact on the file
as when exported directly from AE. So it seems as if adobes Quicktime encoding framework has a bug altogether. I tried all of this with the
cineform codec as well. When using adobe to encode to cineform it displayed the same artifacts.
Original Source Footage Download
Screenshot of area to look for

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