It looks like your loading speeds could be improved, see here.
I'm Canadian (not American) but English is my first language, and I'm on the same time-zone as LA. Improving your loading speeds should help with (1) increasing your SEO ranking, and (2) increasing conversions with mobile customers.
On side note - I would recommend looking into offering digital downloads, rather than exclusively DVD's. I haven't actually seen a physical DVD in 5-7 years, and I have nearly every piece of technology in my house except a DVD player (and most new computers don't even have a CD drive anymore).