A navigation system written in J2ME MIDP for a client device includes a plurality of media players each respectively comprising a buffer. A frame is slideably connected to the endplates to enable the endplates to move relative to each other at an angle with respect to the longitudinal axis of the implant, in sliding connection with the frame. The programming can be supported by information generated by support tools, including, but not limited to: ebooks, articles, games, content summaries, links to websites, telephone numbers, learning confirmation sessions, recommended reading and resources, etc. A configurable logic device is provided for routing connections between the integrated circuit and the connection layer. The grooves are configured to vent air disposed between the roller body and magnetic tape traveling across the roller body.