ok thanks for reply :D maybe you find time to record in future!
btw i dont know what program you are using to record but i can suggest "replay video capture". i use it often and its very easy to use and produces small files with great quality. i use 32kbps audio, 128 kbps video, 15fps and windows media 9 format. dont understand why you need to "render" the capture again after it was recorded.