Nope, I would try other discs to see if it is all or just some If some, do not buy those any more. I once picked up some very cheap DVD's(just needed some DVD's in a hurry) at wal-mart and damn they even had bad vibration in a desktop drive.
Most laptop DVD drives just have 1 or 2 screws on the bottom to remove then, so it may be worth a look.
On that topic. the SilverStone FT03 case only uses 2 screws on its slim slot load drive. Seems ok with most discs.
I am honestly going to still go with slow that sucker down.