Video not importing?

I have a 10 minute video I need to put on a site, and it’s not importing to the stage. It’s in the library, but I keep getting an error message when I try to put it on the stage. I put a 4 minute movie on the same site fine. I’m not sure what the problem is. Isn’t there just a way where you can click a link, and it will open with realplayer or something? Wouldn’t that be easier?