Strange your complaint is noise when my issue with other players is that they are noisy compared with the one I had. I tested my parents one two days ago and it was silent during playback, which is strange compared with a YouTube review of the 820 and it was loud in comparison, but less loud than the 450. So the worry now is I had a good device and others are noisey in comparison for the m7500.
PS as I explained the sale of the m7500, I feel the urge to explain the issue with noise. I'm a bit deaf so machine noise is really loud to me in comparison to other noise (it hits at the mid high range which swamps other ranges to me). Strangely I know when audio is sub par, because it generally hits the mid range more and there is no low or high. Although I can't actually hear high frequencys, I know it's there, and I can hear rediculously low frequencys. So most things mid have to be crystal clear and not too dominant so that I can hear everything else clearly. The same with bass - a well rounded bass and not overpowering works very well for me. So a noisy device usually situated in the mid range auditabitality detracts from my enjoyment and ability to enjoy. So a great quality centre speaker is paramount, and therefore even though I'm deaf, I need audiophile quality to be able to hear correctly and a near silent player. DV / video makes up for the lack of audio, as classic as that sounds with sense removal.
I hope explaining the situation expands on my reasoning for the requirements rather than the oppersit. Cheers.