The HDTracks version will sound better in all possible mediums - portable mp3 players in standard mp3 format, flac format downsampled to 16/44.1, wave, ogg, wma, youtube, soundcloud, etc. Don't look at the 24 bit/96kHz numbers at all, they're not important. There aren't many people who can really (in a blind test) sense the difference between standard CD and higher, "HD" bit and sample rates. The important thing is it's a different master. Unfortunately, most HDTracks albums aren't more dynamic. So far I think it's been two Dream Theater and Megadeth albums and perhaps a Green Day one. If there are more, please let me know!