3D - 2

What is the difference between IMAX 3D and REALD movies?

From a recent list of all 3D movies I downloaded from the Internet there were some labeled as IMAX 3D and others as REALD movies. Does this mean REALD movies are not shown IMAX movie theaters? Is there a quality difference?

Public Comments

1. http://community.reald.com/forums/thread/280.aspx Here an expanation that I did not understand. Good luck with that!
2. IMAX 3-D movies are shown on a special screen that is several stories high. READ-D movies are shown in regular theaters on regular screens.