Laserschwert, these look great. However, to help you make them look as accurate as possible, I'm going to compare your recreation against the real ones and look for errors. I'm not going to nitpick little kerning and spacing issues, but I am going to point out the prominent inaccuracies.
Right now, I see that you put commas after the companies listed for Additional Optical Effects - this is inaccurate, none of them had commas in the original.
Here are the other errors I could find:
Ben Burtt's credit should be "Special Dialogue & Sound Effects", not "Special Dialogue and Sound Effects";
"Dolby Sound Consultant: Stephen Katz" is too close to the Rerecording Mixers credits;
"Assistant to Producer: Bunny Alsup" is too close to "Location Manager: Arnold Ross";
"2nd Unit Make-up" should be "2nd Unit Make Up";
The two lines "Composite Optical Photography" and "Optical Photography Coordinator" need to be brought down closer to the "Optical Printer Operators" credits;
The Dolby "Double-D" you used is a slightly different design than the one used in the film, yours has the D cutout holes smaller than the original. It needs to look more like the one in this: http://www.arsenmusic.com/pic/Logo_Dolby_Digital_EX_IIx.jpg
"See-Threepio (C-3PO)" should be "See Threepio (C3PO)";
"Red Four (John "D")" should have the first quotation marks be "leading" ones (with the curved part on top and looking like 6's, i.e. rotated 180 degrees in relation to the ending ones which have the curved part on the bottom and look like 9's);
As with the Dolby logo, the drop shadow on the MPAA logo and notice should be smaller, more in proportion with the logo and text than it is now.
I think the drop shadows on the whole Dolby logo part are too big in comparison to the actual logo and text. From the infinitesimal remnants of the shadow I can see in the original, it needs to be smaller, more in proportion with the logo and text.
Other than those issues, you basically nailed it. And that's a commendable feat, considering you only had one image of the drop shadow to work from.
I'll make a side-by-side of the two scrolls in case you want to fine-tune the timing, spacing and other little issues.