| 摘要 |
Data indicates characteristics of a user's multiple media files. The multiple media files are associated with a media library. At least one of the multiple media files matches content in a master media file. The content in the matching media file is of a quality that is lower than the quality of the master media file. The user can provide payment for access to the master media file and, if the user does so, the master media file is associated with the media library and the user is provided with access to the master media file. |
