|I'm no expert on video clips, but there is a setting in Meda Player to change the buffering, however....|
most clips of any size at all will do this, until you get them downloaded, and replay them. What I do, is, click the link for the clip, if possible, and see if it looks interesting. Then I exit Media player, and RIGHT CLICK the link and select "save target as." Download the clip and THEN play it.