Hi Resolution download - question on authencity of the files


Hello all,
I have never downloaded a hi-rez album till date.
I recently heard samples of Norah Jones Day Breaks album and was thinking of purchasing the hi-rez album via acousticsounds.com or hdtracks.com or prostudiomasters.com. Question is - are these REAL hi-rez files or are these just up-sampled CD version? Sorry if this is a dumb question, but I am currently listening to "Celtic Woman - A New Journey" and the recording on this CD is superb. I wondered how much the "quality" of such a nicely recorded album can be improved. Hence the question. I am not sure if the FLAC 96kHz/24bit version is a real one that I would be able to distinguish from a CD 16/44 version.
Thanks in advance for your thoughts.
128x128milpai
You have a right to be concerned.

The providence (original source of recording) is "hidden" in many cases from the buyer. It is a "shell" game IMO!

However, there are very good recordings in the plain CD format, and crappy high-rez recordings as well.

You have forums like these, to "call out" the fraud, if you can detect it.


Thank You for the thoughts folks. I am not yet ready for Tidal. For now, it looks like the CD is the best option for me.
I've found that you have to be careful. Redbook--standard CD quality--can be excellent. Hi-Rez sometimes is no better. I wish you could easily see how the hi-Rez was created. From original analog tape digitized at a high-sampling rate and/or remastered? That would be nice to know. 
I checked BlueNote site and Norah Jones site. Nothing about downloads is mentioned there.