TRY IT. If you flash it Rockbox it still keeps iriver firmware. It has so many features over stock.
I have nothing to gain by even trying it. Seriously.
Since you haven't even tried it, you're talking out of your ass.
I bow to your superior knowledge of how I use my own DAP. I bow to your knowledge of my folder structures, playlists and awareness of it's functionality. I really do.
*n