@gemniii42: I assume you meant HSP? HSP is low quality mono sound, and A2DP is higher quality stereo sound. Different headphones will react differently when playing back via HSP. Yours might be playing mono sound out of both speakers?

@bartsimpson123844: Any help that you want to provide testing or troubleshooting will definitely help get it released faster.

@ascherjim: I ran into that same error message while testing. It's kind of the generic "for some reason mplayer didn't manage to connect to your headphones."