when it comes to bitrate and resolution im alittle iffy. I mean I've seen 640x480 videos at 200kbps and 1280x720 videos at 500kbps and im just not sure what's going on or how it actually works. How much is to much for which resolution, and how much is to little for which resolution etc. I just dont understand how it works and how big the difference is. I cant imagine the 1280x720 500kbps looking much better with a data rate of 4-5MB because the quality seemed like it was about as good as 720p gets.

Is there a data rate limit for true original uncompressed HD and DVD footage? I'm trying to figure out how to make sense out of what im actually encoding.

Example questions:

What would 320x240 look like at 10Mbps?
What would 720x480 look like at 512Kbps?