Q: How do I redeem my Digital Copy if I have a Retina Macbook Pro with no DVD drive?  Apple should have fixed this by now!

That is not the fault of Apple, I don't believe, more it is the movie studios. I have been able to download a few movies from iTunes using just the redemtion code, but Skyfall for example insists that you insert the DVD.  This is because it copies the actual DVD movie file over.

More over, my complaint is that I have bought the HD version of Skyfall and the Digital Copy just gives you a DVD version!!

I know that this isn't a real solution for your computer, but the digital copy is tied to your Apple ID. So if you have another Mac, you can redeem it on that Mac, then download the movie to your Retina MBP (Movies in the Cloud FTW).

If you don't own another Mac yourself, find a friend's computer, log out of his iTunes (or make a new user account), log into your Apple ID within iTunes, Authorize iTunes, then insert the DVD and redeem it. I redeemed Skyfall & Frankenweenie from an iMac at work just to see if it works, which it does. Heck, I don't think they even need a Mac, a PC running iTunes should work!

Be cautious when logging into your iTunes Store account on someone else's computer. Depending on the circumstances you could lock them out of their iTunes Store account for 90 days.