I changed the firmware to 2.1.3 - no improvement, even worse, the movie icon inline with MOV files became a page-with-"?"-sign-under as for non-recognized types. I also changed the extension from MOV to AVI, because AVI (DivX codec inside) are played well also with V2.2.2, but didn't worked.
Finally i switched back to 2.2.2
I noticed inside firmware image some files with codec names and RKL extension - it seems to have the codec i need, but probably is not able to detect it inside played file ...
Any ideea?