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ryd994 损坏不属于授权失效。遗失也不一定算。
摘录转载一些别人阐述的版权法案的说明。
Software
Copyright law permits you to make one copy of your computer software for the purpose of archiving the software in case it is damaged or lost. In order to make a copy, you must own a valid copy of the software and must destroy or transfer your backup copy if you ever decide to sell, transfer or give away your original valid copy. It is not legal to sell a backup copy of software unless you are selling it along with the original.
CDs and DVDs
In addition to making a backup copy of software, it is legal to make a backup copy of a CD or DVD so that you can continue to enjoy the copyrighted material if your original copy fails. It is illegal to make copies of CDs or DVDs if you intend to distribute them to third parties, even by giving them away. Additionally, in some instances it may be unlawful to circumvent anti-piracy technology in order to make a backup copy of a CD or DVD.
在线音乐和转录后播放已经是两种播放方式了。前者通过网络串流，服务商控制内容，根据订阅来授权能否播放。后者从本地读取，由用户控制内容，订阅失效后依然能播放。这已经改变了授权范围了。