Oh I get it.

So does it have different effects to them?

So why did the sample videos had voices? (like the orgasm one had a girl moaning...)

I listened to some doses from my freinds house and he has doses with no music or nothing like the samples.
Ex: Orgasm has no music and girl voice, but just beats and hums?

Is that the right one?

What are the pure doses?

I also would like suggestions on which ones are the best to start with... or which ones will most definatly work.