That's an awesome poster.
As for this specific project, it wouldn't have helped (though if you have a way to scan it in, definitely do it; there are no doubt other uses for such a scan), because the problem was that DVD cases have a wider aspect ratio than VHS sleeves, so the artwork from the VHS sleeves is cropped too narrow for use on a DVD case. So I had to find the front artwork from other sources, ideally from the original posters for each movie. Finding the first two wasn't hard, but ROTJ was. "Video Collector" solved that problem. This is what I said about it in an earlier post:
Video Collector sent me an ROTJ image that he worked up using msycamore's "Style B.bmp" scan and various LD cover scans from his own collection; and he did a hell of a job. We now have everything that's showing on the VHS cover, plus a little more on the top and a lot more on the sides (more than enough to fit the DVD cover aspect ratio). We have small Lando, more of the Death Star, the entire lightsaber blade, and Leia's stomach
They all printed out beautifully, and looking at the finished product, Video Collector's Photoshopping is so seamless that I can't even spot it. For the life of me, I still can't get a decent picture of the case with my handheld camera, but here is a scan of it from a flatbed scanner:
Click here to see the full-resolution scan.
The other two turned out just as good. If I weren't the one who made these, I wouldn't be able to tell just by looking at them that they weren't factory-made. I couldn't be more pleased with the results.