2 1x World of Warcraft 1x World of Warcraft:The Burning Crusade
If you are talking about the number of actual computer disks, then there is one . If you are talking about the expansions included, the there is the original World of Warcraft and the Burning Crusade expansion (on the same disk).
Currently in Mists of Pandaria, the latest expansion to World of Warcraft, there are 90 levels.
There are roughly 9-10 million active subscriptions for World of Warcraft.
Assuming every single subscriber in World Of Warcraft plays which is ten million subscribers, then it is assumed that there are ten million people playing world of Warcraft.
It is estimated that around 9500 people join World of Warcraft every day.
too many...
There are many forums available on the official World of Warcraft website. WoW also has many "fansites" that can be found on the official website: http://www.worldofwarcraft.com Here is another website: http://www.fanaticsofwow.webs.com
World of Warcraft had approximatly 9.3 million subscribers by the end of 2007. In January (2007) they had about 8 million.
In the past couple of years, there has been about 800,000 subscriptions canceled. This leaves World of Warcraft with about 10.2 million subscribers.
Currently, as of August, 2012, there are 10.2 million active subscribers to World of Warcraft.
Technically, private servers are illegal for World of Warcraft. Nevertheless, many people still play on private servers.