Core Viewpoint - The article discusses concerns raised by parents regarding the copyright status of English textbooks shared on personal cloud storage platforms, particularly focusing on the case of NetEase Youdao Listening Treasure, which allegedly lacks proper copyright authorization for the materials it offers [1][3][4]. Group 1: Copyright Issues - Parents have questioned the legitimacy of the resources available on NetEase Youdao Listening Treasure, particularly whether the shared materials have proper copyright, as the licensing for certain textbooks has expired [1][3]. - Beijing Publishing Group confirmed that the copyright for the Beijing version of the English textbook used by NetEase Youdao has not been renewed after its expiration on August 31, 2024 [3][4]. - The company has stated that any unauthorized use of its copyrighted materials, including those shared on personal cloud platforms, constitutes infringement [4][5]. Group 2: Resource Sharing and Official Channels - NetEase Youdao claims that the resources shared on its cloud platform are user-generated and not officially sanctioned, although parents have reported that customer service directed them to these resources as if they were official [7][8]. - There is a contradiction in NetEase Youdao's statements regarding the source of shared materials, with customer service indicating that user-uploaded files are not available for public sharing unless users become "cooperative users" [8][10]. Group 3: Content Review and Responsibility - Concerns have been raised about who is responsible for reviewing the user-generated content shared on the platform, with NetEase Youdao stating that it employs a content review system but not addressing the accountability for the shared resources [10][11]. - Experts suggest that companies should take on the responsibility of ensuring that all learning resources comply with legal and ethical standards, rather than placing the burden on consumers to verify content [10][12]. - The article highlights the need for stricter regulatory measures and clearer responsibilities for companies in managing educational content, especially as online learning becomes more prevalent [12][13].