It's quite simple really but people tend to not listen. (Not necessarily you mate, you're just asking a question!)
Well lets put it this way,
The ps2 laser is kinda like baked beans

(here jay goes again on another one!!!

)
U can buy cheap baked beans which still do the same job (Ie food) but they simply ain't as good....plus if u buy really cheap beans then ur more likely to die from cheap beanage (Just like the ps2 laser dies quicker with bad media)
As you can probably tell, I'm bored