I m far from a audiophile but with my Cresyn 750E inears I think the Dingoo sounds at least as good or better than my Creative Zen. And the Dingoo audio is more customizable. EQ has 10 sliders from 60 to 16k, 7 presets and 7 custom EQ slots + a few more settings for bass etc. I dont think the Dingoo can read coverart or save playlists but apparently it supports lyrics
The Dingoo music organizer picks up every playable audio file it can find and sorts them by songtitle, artist and album names. Unfortunatly that includes all snd fx files from any Dingux game on your SD memory card, so it can get a little messy . But I guess if you have a SD card for just music (or no playable wav or mp3s etc on your Dingux SD) it should sort it ok. Though it doesnt seem to sort flac files so you have to sort them the old fashioned way in folders