From my experience from yesterday, it was like 3:07pm, after failing with Walmart 2 times, I decided to check Sony Direct which I got bookmarked, and it didn't even bring me to queue. I jumped right on the page with add cart option (disc), added, luckily enough I was logged into my account, went through the process, got to place order, I placed it, and I kept getting error at least 3 to 5 times. I was so mad and annoyed, I gave up and I said let me check order history, and it was there. It was actually ordered so even if you press it 3 times or more, you're not getting charged 3 times over or whatever as you can only order one to begin with.
Extremely lucky? Maybe so but I was very happy so if you get to the order option and it gives you error, don't be afraid to click it a couple of times. You never know, might end up like me who got one. It says preparing shipment for a day now. Got the email after 30 mins of the order and I checked with my bank and I was charged from them.