Well, unfortunately you won't be able to find a boxed copy easily these days. You might be able to find one on E-Bay, but those auctions can become rather expensive. I believe you can still order a burned copy from the developers, A# for twenty dollars. They don't officially sell it, but contact David (david (at) a-sharp.com) and he will work it out with you. Unfortunately their website is down at the moment (it was up less than a month ago), I don't have any idea what is going on, so it might not be possible any longer.