Hi Dr. Sun,

I can not open the class videos. When I click the video link, it takes me to the following link for the user name and password

https://mediasite.calstatela.edu/mediasite/LoginForm/Login.aspx?ReturnUrl=%2fmediasite%2fViewer%2fDefault.aspx%3fpeid%3de12cb1376469496288055d6d2ae572cc1d

I don't have any user name and password for this site.

Thank you