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Hello, I'm exercising extremely frustrating issue: the SS 4.0 will not allow me to transfer Atrac3plus files compressed with bitrate ranging from 96 to 160 kbit/s to my NW-HD5. The conversion goes just fine only to present “cannot transfer” error. 48, 64, 192, 256… transfer and play fine. Anyone any clue? I know I can use mp3, yet I want better battery life, no gaps and slightly better quality I believe.