I normally send tunes using emptool for speed, but I recently uploaded a batch using jEmplode. I noticed that it sets the bitrate attribute to be a plain number, rather than the Empeg's format of [fv][ms]<number>. This means that details view on the player shows all these tracks as "Variable rate Mono 0kbits/s". (On the plus side, this does at leas fit in the display!). More importantly, I can't search for fixed rate tracks when they are missing this information.