EA giving players 2 DRM option in Battlefild.

EA在新的battlefield里提供两种认证方式，一种是光碟认证，另外一种是一个认证KEY的方式，不过到国内可能还是会沦落到被破解。
不过有一点是认同的The more ways to activate, the better for your customers.

以下原文评论：
Don't like one form of DRM? Why not choose another.

There is much wailing and gnashing of teeth about onerous digital rights management ( DRM ) systems. Electronic Arts ( EA ) has taken an interesting approach with its new game, Battlefield: Bad Company 2 . Instead of giving players just one DRM option, the company gives 2 - either always use your disk as a key or authenticate online once and only once (digital downloads don't have a disk, so they don't have the disk option).

This gives an option for players who have difficulty with Internet access (notebooks, and those behind firewalls - a common problem in the military).

Technically, a game company could give more options - email, a fax, or toll call to activate the game's license.

The more ways to activate, the better for your customers.

Otherwise, the service is pretty generous - allowing players to install the game on up to 11 machines at one time.

Its an interesting approach and pretty clearly aimed at focusing its efforts on serious torrent-type pirates, rather than casual ones.

One suggestion: if the game supports multi-player, don't allow a player to "play with himself" so that friends will be encouraged to buy legitimate copies rather than simply share one.

Of course, this approach only works if the DRM system itself is effective. If not, it seems hardly worth the trouble.