Video File Size Calculation

Need help.

How much file space (flash drive/disk drive, etc) in KB would be required if I wish to record a video for 120 minutes, with the following parameters:
Encoding- MPEG-4
Resolution- 640 x 480 pixels
Frame Rate- 30 fps

Please show me the calculation so that I can do the maths in future.

Appreciate your help.

Wikipedia: MPEG-4

Quote:

---

MPEG-4 is efficient across a variety of bit-rates ranging from a few kilobits per second to tens of megabits per second.

---

Ok. I got the calculations from here for AVI encoding.
http://support.microsoft.com/kb/118591

Thanks, SpywareDr.

No problem. :)