My DVD player really heats up discs? ?


I just picked up a used DVP-S9000es and I have run into a concern that I wanted to ask about. Discs get very warm after extended playing. This is true with SACD/CD’s as well as DVDs however; DVD’s get down right hot by the end of a movie. I have open front and rear ventilation but a half inch on each side. Has anyone else experienced this with their Sony 9000 DVD players? Is this normal?
I never had this issue with my 5 year old Panasonic player.

Thanks
jer
Well it does not sound like a ventilation issue but I have it on the next level above my amp and 2 inches above the amp and 2 inchs above the s9000es. It could be better ventilation but it could be a lot worse.
I am tempted to see how it operates with the case removed. I could just blow out any dust accumulation every couple of weeks.
My Philips DVD963SA does the same thing and there is plenty of ventilation around it (4" on either side and more than 1" on top)...redbook cd's even get mighty warm...I was expecting to see that you owned the same player when I clicked on the thread...seeing that you have a player from an entirely different manufacturer leads me to believe that this is not completely out of the norm.
My cousin & I both run Toshiba SD-9200's, I spoke with him earlier his dvd's get warm too. Jer, I honestly do not think it is dust related, so taking it out monthly to disassemble seems like a wasted effort.
Jer:
No cover will allow too much dust in unsuspected and difficult to reach places; I'd run a trial but doubt will be leaving permanently this way.
Might the closeness to the amp increase the temp at the players location? Maybe the player does work warmer than your previous Panasonic. What about leaving a movie playing completely with the amp off to see if this has a bearing to it?
What do you think?
I've a Sony 999ES, the dvd gets pretty warm after playing for 2/3 hrs, but no issues so far, it's probably normal.