I would have to render a guess of around 100 degrees. and it didn't seem to affect the burn. I put each movey in the home player and bounced around the tracks, but I wasn't going to sit through 4+ hours of movie watching in one night. I just noticed you have the 17" model, maybe due to the tighter confines of the chassis there may be more heat in the area of your drive, but most CDs/DVDs are pretty resilient. I'm sure if you have a CD player in your car, you can attest that those things can get smoking hot in the right conditions. just be careful also, that if you have a fairly cool room, that you don't place a hot disc on cold surface, cause that could thermaly shock the disc, and render it useless. a couple of years ago we put an iron over a cd and then put it in the freezer. we had to completely defrost it to get all the fragments out. a cold table probably wouldn't shatter it, but it would warp the disc and there isn't anything you can do about that.