This question was posted a few months ago, but I figured I'd answer it anyway. D. A. H.: There seems to be no way to do Morse input to these players. Not true. If you go to Settings --> General Settings --> System --> Use Morse code input --> Yes, it should enable the use of Morse code. How to use: This isn't exactly clear, as the manual doesn't state instructions, but when (re)naming, simply use the select button to tap out the Morse code.. Note that I don't know any Morse code myself except for S.O.S. Timothy