PDAWin will definitely learn codes in CCF mode, it's the only way I've been able to get some of my stuff in. Can't imagine what the problem is. When I first started, I lost most of my codes because I forgot to transfer the CCF back to the PC before I started to edit it. I have had problems in whilst editing, with files "disappearing" if I hadn't changed the file names. But once PDAwin has learnt the code, it should be able to play it back.