It might be printing issues. Am I correct in assuming that those Drew Struzan covers were done by Video Collector? I printed his out, and his dimensions are 10.43 by 5.85 inches. That height appears to be perfect but that width isn't wide enough. When I print out Harmy's covers I have to scale them down since they are really high resolution. Since VS's height appears to be perfect I used that to resize Harmy's height. When I do that Harmy's cover width is just a tad too wide, but that was easily fixed by cutting a little from one of the sides.
So Harmy's covers worked out great for me, but VS's are not wide enough. Then again I could be going about this whole thing the wrong way.
Thanks for the link, I'll have to check it out.