Ive transfered several CDs onto My HD3. SQ is great, however, you get a little intemitent 'popping' and crackling noise. just the occasional 'pop' but it gets annoying. Its been transferred and 256 on ATRAC3Plus and on 64, and you get the same popping on both. Anyone else noticed this, I suppose it could be imperfections in the CD source recording but it is there on most tracks. Anyone else noticed this, would enabling 'cd smoothing' help.