Is it normal to hear cd noise (like it's turning and all)

ok i play with dvd+r discs and i hear noises like it is turning
i mean i can hear it IS THAT NORMAL?

DON"T GET ME WRONG I have 13 different games (14 and 15 is on their ways) i never had a single LAG or JUMPing stuff i just hear the disc noise is that ok or you think i should return my xbox and get a another one?

 

I don't know if you sould return it, if it works.
Mine makes turning noises too, don't know why.

 

so i suppose it is just alright yours does it too

hmm weird but like i said everything works perfectly works no lags no jumps whatsoever o' anythin like that hmm i dunno anywho

anybody else>?