Quicktime X for avi files by default?

Right click on your .avi file, select "open with" and then "Other."

In there, select Quicktime X and at the bottom check the box "Always open with."

 

Get Info and select Quicktime X from the dropdown, then hit 'Change All . . ."

(command+I or right click and select from the dropdown)


(ha, i like how I'm still a newbie even though I've been here for 5 years

 

I have noticed a bug in Snow Leopard that disables the "Change All" in the Get Info window.

To enable it you need to go to "Open With" and select "Other," navigate to Quicktime Player X and check the "Always Open With" box.

THEN you need to bring up the Get Info window and the Change All button will now work for that file type.

 

So QuickTime X supports avi's then?