effect of sound

human mind can accept to listen tp the same piece of music over and over again. We buy CD's DVD's and previously Cassettes because we want to keep listening, However, we generally, do not wish to watch the same movie over and over again. Buying a Movie DVD is certainly an ineffcient and costly decision. If you pay 20JD for A DVD and watch it one or at most twice, then each instance costs you at least 10JD, however, if you pay the same for a music DVD, you most probably listen to so many times, making the cost of each listening instance very cost effective.
But what we take for granted and i am unable to answer is what is it in our mind set that accept hearing repitition more than visual one.

Marwa is murdered in Germany

Marwa Al-Shirbini, an 32 year pregnant Eygptian women was stapped to death at a Dresden Courtroom by a German citizen of russan descendant. She was suing her attacker after he insulted her for wearing the Islamic hijab.

By the way she was stabbed 18 times, and the police came into the room and shot her husband instead of the attackers (because of his Islamic beard and dark complexion )

Where is CNN! Or BBC why isn't this event occupying the breaking News

to stab somebody 18 times, must have taken long time, where was everybody? And how come the police shot her husband. Why do they assume that we are the attackers, I do not recall that we occupied Britain or occupied Germany to give them the feel that we are hostile in nature, or have done anything to instigate avenge.

Imagine that a German national is stabbed to death in an Egyptian Courtroom. I would be certain that in every newspaper, magazine, News or media broadcast would be talking about this event till we get sick and tired of listening.