

When it is playing video content such as a DVD, the operating system has to synchronize playback with the display redraw rate. There may be a noticeable horizontal line at the point where the two frames meet. This is more noticeable during scenes that contain fast motion. This problem occurs because of a hardware limitation that is known as "tearing." Tearing is a video artifact in which the top portion of the screen shows a different frame of video than the bottom portion. In this scenario, you notice a cut line in the video on one of the monitors.

You play a DVD movie in Windows Media Player or a third-party video application. Your display is not set to use Windows Aero. You have the Duplicate (Clone Mode) display configured. Your computer supports two or more monitors.
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In fact I would say that I've never seen this error on any device except an Apple TV, not once.You have a computer that is running Windows Vista or a later Windows operating system. Apple made some choice here about HDCP compliance that no one else made and it's a huge problem for people that own Samsung televisions. My DVD players don't have this problem and they show Netflix and Amazon content.

My Roku doesn't have this problem and it shows Movies, Netflix, and Amazon. I am a software person and I have to say that some low level engineer at Apple made a huge mistake here. I was building a large movie library (> $500) of my favorite movies on Apple and now I can't play them on my television. I get this HDCP error on everything I play on an apple TV now, Apple movies I paid for (it even lets you rent them, then won't play them), Netflix, solid HDCP error. With the current software release of my Apple TV (it was the 2nd one that came out), it's a hard down. It has had this problem off and on with with Apple TV for many years. I have probably a 2010 Samsung, fairly high end TV.
