What do I use to open vidoes
I have window xp and my camera vidoes downlaod from the camera as .avi. windows medai player can't open them, so what can.

You need to install the Xvid codec: http://nic.dnsalias.com/xvid.html

VLC or Winamp can open XviD files as well.

forumer.com/viewtopic.php?p=3878#3878>Other choices... Or upgrade to Media Player 10