He said enough??He really said nothing.What we are asking is why it writes hd580 on a HD650.It is that simple.
If you don't know why,then you just don't answer.
As stated, we are not in a error free world and I am enough mature to understand there could be errora at products.All I want to get is a logical and mature answer to my question.
And saying that if you wanna be sure just compare it to another one is just like saying "That don't worry about the fly in your soup.It wont make you sick
and still tastes like a fly-free one."
Do you know of any big company admitting production faults at first hand?!