Despite in the manual clearly stating that this player will play mp4 and Div X files straight off a USB memory stick... it doesn't. I have checked that the files are not protected by DRM. I have tried using 4 different memory sticks all with different storage capacities. Even tried to burn the same files onto a DVD to see if they would work that way but no result... Just says every time "unsupported file" Very frustrating... Any ideas?

Audio Players & Recorders - Clarion - Vx401 6.2" 2 Din Car Stereo Cd/dvd/am/fm/mp3 Receiver W/ Usb...