A FTP server has been built for lecture information. You can access by visiting in the browser or using ftp software. The username and password are both "msclecture". 

The videos of following lectures are available to be downloaded:

1、2012  Introduction to Modern Mathematics Lecture Series
2、2012 Tsinghua Chia-Chiao Lin Distinguished Lecture
3、2012 Tsinghua University Loo-Keng Hua Distinguished Lecture
4、Imaging Workshop
5、Introduction to Modern Knot Theory

More videos will be uploaded.