I am new to video editing. I have Adobe CS4 Premiere. I am trying to make some instructional videos for my friends. I am making screen captures to demonstrate how to do some stuff on the computer. I have an iMac 27" i7. It is great to use.

When I make a screen cap the resolution is great and the clarity is excellent.

I take the video into Premiere and increase the speed of the clip and then export.

The Exports are always much lower quality than the originals. But I don't know why.

I have watched some video tutorials on using Premiere and have tried many many different export configurations but I can't seem to figure out what I am doing wrong.

Does anyone know where I can find information on making top quality exports?

Any help is appreciated.

Forgive my ignorance.