Also consider that the books you buy from Amazon are limited by digital rights management rules imposed by the publishers.

再加上您在亚马逊网站上买的书都受到出版商强加的数字产权管理法规的限制。

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Most people really just don't understand digital rights management.

大多数人只是不懂数字权利的管理。

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Digital rights management schemes, which limit the ways we can play legitimate copies of games, are annoying. But piracy is worse.

数字版权管理计划限制了我们能够玩到正版游戏拷贝的途径，这很让人恼火，但是盗版的后果更糟。

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Worrying though it is, the deal may push publishers to abandon digital-rights management (DRM), notes Matteo Berlucchi, head of Anobii, a literary social-networking site.

ECONOMIST: A print bookseller tries to survive in a digital age

Microsoft and Sony are in the digital-rights management business too.

FORBES: Magazine Article

So far, the major labels have been unwilling to let their music be distributed on podcasts, which don't have any kind of digital-rights management scheme that prevents users from redistributing the files.

FORBES: Take My Music, Please