I would not touch this stuff with a 3.3m pole, but for those who are into this kind of thing, there's a well-researched post at Nigorimasen dealing with Direct2Drive, Amazon Unbox, and such. This looks like a good time to remind everyone that BOST sells anime without DRM. Their biggest issue is, they have no content with a wide appeal. Druaga, nice as it is, does not aim to be anything great. The [in-]famous show without pants appeals to niche viewers as well. And the remainder is even less appetizing. So the fate of DRM-free anime is hanging in the balance.