After updating to firmware 4,301,025 of G-FLASH NG seems to run fairly stable. With Software .022 and .024 I had with the title selection constantly crashes that were eliminated only by pressing the reset button (paperclip) until the next time. Apropos: firmware update works for me only if I - to start the update SW on the PC - connect the player to hold the "M" key to the USB port (user manual p.34).
Contrary to other reviews of the FM transmitter works for me in the car properly, but one must be plugged as a transmitting antenna headphones!
Am now quite happy, but because of the long anger with the firmware still only three stars.