Using 3d Panoramic Exporter

i rendered the lab as a panoramic exporter as the image illustrates the different stages below.

To do I had to insert a target camera in the scene. i applied a path constraint linking to a circle. When rendering the QuickTime movie I rendered several different sizes. After rendering I found out the result where not clear at all they were very pixilated and blurry. The only good feature was the panorama navigator.
This was a major problem for me and I had to think about different ways to overcome this problem.