Streaming video often results in the stoppage of the video while the video "Buffers." Buffering means the part of the video you're trying to watch is currently downloading. Constant buffering usually occurs if your Internet connection is slow. You can decrease the amount of buffering that occurs throughout a streaming video in Windows Media Player by adjusting the buffer time. You typically cannot adjust the buffer time through online video players; however, you can access the video and let it load completely before watching it. This will prevent the video from buffering while it is playing.
Double-click "Windows Media Player" on your desktop or open it from the "Programs" list in the "Start" menu.
Click "Tools" and select "Options." Click "Performance." Click "Buffer" under "Network Buffering."
Enter at least "60" in the "Buffer" text box. You can enter a higher number if you wish. The higher the number, the longer you have to wait before the video begins, but you won't have to sit through constant buffering.