I wouldn't worry - I own a Creative Zen Micro and I also have a bunch of mp3 files at 192 kbps, some even at 256 kbps. All of my files transferred very smoothly from my PC to the Micro and they all sound great. Just because the specs say 64-128 kbps doesn't mean that the Micro won't support files at a higher bit rate. Based on my experience, I can tell you that it definitely does.