Mostly digital sound. Listen to the podcast from Tiesto, Arim van Buuren and Paul van Dyk. When I'm working though, I mostly just let the
di.fm Progressive channel running.
I'm listening mostly just to the podcasts or radio channels because of the reason that I got tired of listening to the same CDs (back then) and it works pretty well. Mostly new stuff, no repetition and if there is a piece that really catches me, I'm just saving it as a YT link and can come back at any time later.