Note: If you want to play the pre-recorded lectures on your own personal computer running Windows, copy all the following zip files to a single folder on your system. Unzip them, and run the two lectures .exe files. The large Xtras zip file will unpack to another folder and a couple files needed to play the other .exe files. These are large files (3.5mb, 2.7mb, and 1.0mb) so you may find using a zip-disk to transfer them more effective.