Sony Bd S350

[Jutty]

I did a search on this ,but couldnt find anything.I apologise if this is repeated.

Recently ive noticed my sony s350 is a little noisy when loading and or playing movies,its sounds almost like you can hear the disc spinning but its grinding on something.would this be normal? DVDs playing are very quiet.
I know the description isnt very helpful,sorry
Just wondering if the motor or something was on its way out
Any help would be appreciated
justin

(...seems some discs make this whurring noise and others dont..
Event horizon make the noise,where as Serenity is very quiet)