Web site preview clip - advise pls

When doing a preview of a clip on a tour what type of file and player plug in would you go for ?

All advise appreciated

socks

I tend to use Flash or WMV for preview clips. I actually prefer Flash because just about everyone has it installed and it has a cleaner crisper look than WMV for small clips.

if all the videos in your site are wmv's, it might make sense to use a wmv. if all your videos are mpgs, might wanna use mpgs. that way, people who - for any reason - can't see your videos won't join your site.