Just getting into this hi-res source thing, and wanting to figure out what is worth it. I am on the Pearl Jam 10 club and get a credit for one of their "bootlegs" each year. They record these, and generally they seem like pretty decent recordings, though I have been listening mostly to the standard CD's. Without judging on the music if you are not a PJ fan, can you tell me if FLAC HD/ALAC HD is worth it? It is ten bucks more than my credit. It would be a recording of the concert I took my high school graduate son to in Missoula and so a good recording is worth it to me, but I don't know if FLAC/ALAC is good enough, or FLAC HD/ALAC HD is worth a try.