hmmmm... im under the impression that the gg of my mini35 is rotating a little bit uneven but im not sure about that. i dont even remember how loud it was cause i havnt used it for 3/4 year.
could that be possible ? when yes someone know what i can do ?

It could be very possible that a disc is not spinning right and thus
produces lots of sound (you can here this easily with most common
cd/dvd drives if the disc is a bit off balance).

I'm not sure what you can do to make it go away...