The player is sound but the installation of mp3's is cumbersome under Linux. If I mount the player and the mp3's easy top copy, the ID3 tags are mostly not accepted and the order of the tracks is at sixes and sevens (especially stupid for audiobooks). You have to pay to use their own tools (golb). Then go. For me, this reduces the quality of the player clearly ... because with an MP3 player, one should not need to fret.