Little squares in action ssequence

[mikewv100]

When watching HD movies with Voom I sometimes get squares all over the screen for a second. What is this?

 

[The Stone Man]

It is digital artifacting. You will see this referred to as 'pixelation', or blockiness. There is an excellent thread on the various types of video artifacts that explains a great deal. You can read about them in: http://www.satelliteguys.us/showthread.php?t=11769.