But the whole point of listening in a car is the background noise. Having white noise at 70db will point out errors in your balance. I don't listen in the car to hear how pretty the song sounds. I want to see if I can still define each part of the mix clearly. And for some reason it really does point out if you have overdone the reveb.
And yes always listen at different levels. Before I leave the studio I turn the volume down to mostly check the vocal level. I want it to be the last thing I hear as the song fades to zero. Of course thats the style of music I'm working on, I don't think that rule applies to heavy rock.
The Blue Ray Player replaces a Computer completly in a multi media set up. It will even stream Net Flicks directly. You can look at photos, movies etc. Mine is the basic model and not wireless but it has ethernet jack for direct connection to your router. It's also cool to be able to control the volume from the remote.
It can be a little picky about some formats that I've downloaded but seems to play just about every computer format of media.