I didn't notice any difference between the three files in any of the cases...and that leads me to question: Can we verify that the website choices are in fact

I didn't notice any difference between the three files in any of the cases...and that leads me to question: Can we verify that the website choices are in fact legit? i.e. the 320k mp3 is in fact 320k and the uncompressed wav is in fact that. And also, that the browser isn't messing with the choices either (by e.g. caching the first file you play and reusing it for the other choices). Also, I ordered an optical cable so I can use my amplifier's DAC rather than the onboard soundcard DAC.