Which video compression should I use

[SexoboliC]

I have problem with my video clips,they are in mpeg format,10sec=1.8MB.
Which compression should I use for free sites to get listed?

I'll appreciate any suggestion.

[directfiesta]

size?

320 x 240 ...

[donross]

use sorenson squeeze. 320x240 around 1.2mb only 15 secs

[hqxpics]

Windows Media Video (WMV)