crazy_dave: As for the 50MB, what exactly is it that is in that 50MB missing from the retail disk? I thought it was just more bonus material? If it's free bonus stuff, then while not ideal it's hardly a crime against humanity; if it is necessary stuff, then yes I agree that does suck.
They said at the conference it was necessary to download it. So it's DRM.
In fact, it is probably the only DRM that work towards its intended purpose. And that purpose is simple: To prevent anyone from pirating the game before it is released.
Pirate groups often have access to people in the distribution and retail business. So they will be able to get access to early copies of games. But in the case of The Witcher; well, what they get is incomplete. The 50 MB that is missing is likely executable and other crucial files. So they can't crack the game ahead of the release date, because there is nothing for them to crack.
This also explains why CD Projekt can, at the same time, offer the game DRM-free from GOG. Because they know, like we do, that DRM won't help once the game is in circulation. The game will be cracked in a hurry and released on torrent sites, regardless of the DRM. And they also know that once the game is on sale, and easy to obtain by legal means, a lot of people who would otherwise pirate it just to get it early are just going to buy it instead.
So they do everything they can to make sure that the game is not going to be available on torrent sites before the release, instead of trying (and failing) to keep the game from ever being cracked.
Which is understandable. But as a customer of the disc-based version, I obviously do not like it. Because the day the DRM-servers stop working, I will no longer be able to install it. In fact, it wouldn't surprise me if I'll experience server troubles on the release day, since everyone who buys it (including GOG-customers, BTW) has to download a bunch of files for it to play.