I have just bought the NW-A1000 HD player and prefer to use SonicStage to upload my files, but it will not recognise any audio files that are in Japanese font. I simply can't drag them into the library. There must be a way for the software to allow me to upload these files into the library... English file names are OK. I would have to remane 1/2 my music collection into english otherwise, it will take days. Please help.