Mixing and playing sounds with the Windows Media Player

I was born in 1970.
 
I studied Electronic Engineering (graduated in 1997).
 
Subsequently, I passed some Microsoft exams, and currently I'm certified as:
MCP, MCT, MCDBA, MCSD, MCAD, MCSD for .NET (early achiever).
 
My first computer experience dates back to early 80s, with a Sinclair ZX81.
From that time on, as many "friends" say, my IT-illness has increased year by year.