I have not seen ANY video player that plays EVERY video out there.However,I can say that the VLC video player is the player I use most often because it does play MOST videos out there -- not all,but most.For instance,this week I tried to play a video that had been shot on VHS.The VLC player had lots of problems with this.My computer also showed that Real Player could play this video -- I tried it and it had no problems with it! Usually it's the other way around! So I've found that the best thing to do is to have several video players on your computer{I have about 6 or 7 of them}.This way you'll usually find one that plays almost every video out there.Again,no video player plays EVERY video out there,but the VLC player does play most videos and is the one I use most often.