Before I open this BF3 DVD that I picked up, can someone tell me if it must stay in the drive any time you want to launch or play the game? If it is one of those, then I will take it back before opening it, and buy the download version. I really dislike having to have the DVD in, and I don't feel like messing with manipulating an image file of the DVD just to get around it if it is one of those.