Board game with friends?

https://www.amazon.com/Z-Man-Games-ZM7101-Pandemic/dp/B00A2HD40E

I have neither seen the video where they are playing pandemic or played that old version. I can confirm that the newer version is 4 players max but you can also buy an expansion which allows for 5 players max as someone will be a bio-terrorist. This is the expansion : http://www.amazon.com/Z-Man-Games-ZMG-71100-Pandemic/dp/B00A2HD40E