Since there is no common DRM standard, songs purchased for one type of music player may not work on another. 由于现在并无一个共同的数字版权管理标准，所以为这种音乐播放器购买的歌曲可能在另一种播放器上就听不了。
The provision of standard forms of various copyright licencing contracts shall be the responsibility of the National Copyright Administration. 国家版权局负责提供各类著作权许可使用合同的标准样式。
