Problem opening a video??
955466
you can't it probably has a virus. delete it
899860
i cant totally help but I do know that you need to save it as a different format that isnt as big of a file. Such asif its .wmv it may need to be a quicktime file.
908610
use YOUTUBE GRABBER to download the file (it does not have to be from youtube), then use FLV Player to watch it.
1153913
did it always do this???--if not--try a system restore--pretty easy to do--restore computer back to a date before it started acting up!!--or--have you recently updated your video drivers??--if so roll them back--but the system restore thing will probably work if thats not the case--if i had more information i might suggest something else--but the restore won,t kill ya any ways
885998
This is a bit like killing a mosquito with a shotgun, but I sugest you install the K-lite Mega codec pack - it contains basically every codec that exists.  While this is overkill for your problem, it should ensure that you never run into a video or audio file that you can't play.\n\nIt also includes the 'media player classic' - which I find to be vastly superior to the newer versions of media player, but you don't have to use it if you like WMP 11.\n\nJust download the file from the link I included and do the default install.  Reboot, and you should be good to go.
229061
Re-Download it as the correct file type?\nTry changing the files properties with regard to what it opens with?\n\nThats all I can come up with! =(
407438
You must be trying to view an .avi that is divx or xvid encoded, try downloading klite codec pack.
277699
Maybe you need a Codec.\nCertain videos needd certain add-ons for media player to make them play - you just need to take a look at the error messages, find the codec, and download it.\n\nEDIT: The others are right, I used Div-X
787693
I used to have a problem because when I first started uploading i was using .rm format which doesn't work. I got my files in real format so i used WinAviVideoConverter to change them into .wmv format. I think u can get it at download.com. Then i used Windows Movie Maker to cut it into parts and save it. Then i uploaded it onto Youtube.
182791
Try Real Media Player.\n this player solve ur problem
926721
Did you move around video and sound files to another folder?  That's happened to me before.  I think to fix it, you just right click and search for it, and it'll replace the file name to the new location.
493869
maybe your yahoo videos arent permitted by your firewall try checking it out.
917854
Problem:\nMost problems with viewing videos downloaded from any place on the internet are caused by not having the proper 'codecs' installed.\n\nSolution:\nMy suggestion would be to download this program called G-Spot, which will tell you which codec you need to play the file, and if the codec is indeed installed on your computer. G-Spot address: http://www.headbands.com/gspot/\n\nMany required codecs including DivX and XviD which are the most likely codecs you need are availible at: http://www.free-codecs.com/
2676
Maybe some videos required a specific codec like DivX. Go to http://www.divx.com/ to download it.
1051376
some of yahoo video's video clips open a separate window to play. Do you have popup blocker on? If so, turn it off and try again.
952372
The video file is corrupted.  This happens to me often.
601779
Maybe the program you are trying to use is not compatible with the video codec you downloaded. Try downloading vlc media player (www.videolan.org/vlc)