Hello sternmarc,
I absolutely agree with JohnK. I've done many blind listening tests to so-called "high-resolution" files vs. the standard Red Book CD standard and there is not a whit of difference in sound quality.
The higher sampling rate files are useful for studio editing, but there's no audible difference. Some of these tests, by the way, were done in a Manhattan recording studio of a prestige audiophile label, and no-one in the assembled group could detect a difference from the high sampling rate files vs. the CD standard.
Regards,
Alan
