- Create some interim method for syncing the Rio Central with my Empeg.

Well, you can download songs off of the empeg with the latest versions of the Emplode software. Then you can just send them to the HSX with emplode.

You may be surprised to find that the Emplode 2.0beta11 for the car player works nicely with the HSX.

However, copying files off of the HSX is not supported by Emplode, it's deliberately disabled for the HSX. Since it's a ripper, you see...

In recent versions, I noticed that the JEmplode utility would not connect to the HSX even though it would show up in the discovery dialog. Perhaps with a little coaxing, the JEmplode developers can be made to fix up whatever minor bugs are preventing HSX connectivity, and then you could have bidirectional transfers between Empeg and HSX via JEmplode...