So if the music companies are selling over90 percent of their music DRM-free, what benefits do they get from selling theremaining small percentage of their music encumbered with a DRM system?

 
  • 如果一个唱片公司正在销售超过90%25的DRM免费音乐,他们能从那部分小比例的受DRM系统保护的音乐中获得什么好处呢?
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