If all you're using MP3 for is the space saving and metadata, you might like ogg/opus. It's the Opus codec (the state of the art in audio codecs right now) in an Ogg wrapper.
You'll find a portable player capable of handling vinyl before you find one that plays ogg/opus, but desktop software is mostly fine.
You'll find a portable player capable of handling vinyl before you find one that plays ogg/opus, but desktop software is mostly fine.