German

So I'm on foreign exchange in Germany right now, but I'll be coming home to the US in a few weeks. I'm afraid of losing all the progress I've made with my German, but the DVDs I buy here don't play in my laptop (or I'm assuming, my DVD player back home). Is there anywhere that I can buy DVDs with German dubs, but will play in American laptops? I haven't been able to find any back home (the most they ever have is French).
Thanks in advance :]