Blue-ray dvd compatable

Hello, trying to buy Panasonic blue-ray player, is it me, or do all Panasonic blue-ray players make a lot of motor noise when playing DVD's? My two Panasonic DVD recorders are near silent when playing films, but when i have tried panasonic DMPBDT-110 and 210 models disc play-back is very noticeable. I.E. sitting 9feet from plasma tv screen. I have over 400 films on DVD, so this is a necessary requirement. Yours, protemporum.