Here's the scenario.
I'm on my Windows computer at home, listening to a podcast or music playlist. I need to go out. I pause the podcast and then, when I'm walking down the street I hit play on my Android phone and continue listening where I left off. A couple of hours later, I'm at work at my desk and want to continue listening (on my work Windows computer) from where I was a couple of hours ago on my walk. Then, later, when I get home again, I want to open my Windows computer and hit play, picking up from where I was listening in the office.
I don't mind where the centrally-stored music or audio is located but I must be able to add to it manually from my collection or from a new download. I don't want to have a copy of every music or audio file on each of my devices—I'm after one, central location that all my devices can access. And most important of all, the app must know where I was up to on whichever device I was listening with last. I want to open the app on any device and it knows where I'm up to, so that I can just hit play and resume listening.
This isn't just about audiobooks or podcasts. It could be anything I'm listening to.
Does such an app or setup exist?