I have a video which has a resolution of 720p and only last 2 minutes. It is in a .mov format, but the video size is massive. 7 GB's for only 2 minutes!

I am trying to find a way to use Vegas to decrease the file size yet have absolutley no quality loss.

I have tried rendering it as .avi and .wmv but both ended up looking lower quality than the origional .mov.

Does anyone know how I can render the video, so that they file size decreases but suffers no loss in quality.