Denon DVD-2910 excessive vibration?

Thanks. This will make the second late model Denon I have have purchased with issues. I have older Denons - AVR2500, AVR 3300 and a DCM460 CD player. They have been bullet proof.

I just returned from my local Denon dealer and found his DVD2910 was vibrating as well; although, not as bad. In fact he pulled a brand new one out of the box. Not all discs vibrate with the same intensity and by track 4 on all of the discs, I have tried, the vibration is gone. Allison Kraus "New Favorite" vibrates the worst. The dealers was manufactured Oct 2005 and mine was Aug 2005. If no one else has expierenced the vibration issue, maybe there was a bad batch.

Have the exact same vibration problem with my Yamaha S1500 universal player.

Sounds like a bad production run? As it was mentioned maybe a transport or a drawer problem I've had mine for over six months and have had zero problems with it!