What do you think of watching movies and listening to music in the National Library? Where to see? Digital space exists, it won't be used, and only one file is requested, which is very unreliable.
You can access the reader portal system of the National Library on the national intranet: mylib.nlc.gov.cn, which has audio and video resources to access. You can log in with a card reader.
In fact, you can watch audio and video resources in the resource list of the national intranet, and there are more resources.