Hao Wanshan talks about mp3 in treatise on febrile diseases.

You can download the video first. It's easy to find on the internet now. It's on Youku and potatoes, and it's on the electric donkey. After downloading, you can download a software called Format Factory, which can be converted into MP3 format, and there are three kinds of sound quality to choose from. That's what I heard. Now I have heard about all the diseases of the sun.