Science and Mathematics DVDs Multibuy
This set of DVDs contains all of my science and math videos.
The songs are also included as high quality (320kbps) audio mp3s: you can use these to burn your own music CDs, move them to an mp3-player (such as an i-pod) or the hard-drive of a computer.
Click on the buy now button above to purchase this set of DVDs for US$20 (free shipping/packaging by airmail to any international destination).
If you want to pay in a currency other than US dollars you can do so by visiting our International Prices Order page here.