Secondly, first of all, we should understand that the cover also needs to buy copyright, especially the cover video released publicly on the Internet. However, in fact, few people will buy it, and even if it is published online, it seems that no one will pursue it. For example, platforms such as national K songs are the covers of public offerings all over the country. The reason is that the legal cost is too high. After all, it is relatively cheap to buy cover copyright, which seems to be 0. 12 yuan × number of copies (which can also be understood as the number of downloads or views). Litigation is not cost-effective, so most copyright owners turn a blind eye.