This isn't an EMPEG post, so it should go in the ICE forum.
[edit: had originally put off-topic]
That said, the PhatBox supports OGG *only* in its Music Manager software WIndows software. That is the information pulled directly from their page and directly into my email from one of their engineers. While you can encode and play OGG with their software, there are no provisions for playback on the actual car jukebox.
I have glanced through the review. A few of the words the author chooses to use indicate to me that they don't know too much about MP3 encoding or Digital Audio Extraction. It makes it easy to believe that they're completely off base about the OGG support.
If you want to see the different players compared, my matrix page should be up to date:
(auto)mobile Jukebox Matrix
Bruno