Hi James, That isn't the sampling rate--it's the bitrate ... I don't know the technical terms. Most mp3's are done at 128 kb/s or 160 kb/s; I did this at 48 kb/s and in mono to preserve space. It sounds really good, actually--it's a lecture. But I can't compress the thing. I'm not sure what sampling rate the original wav file had. On Wed, 10 Nov 2004 07:45:53 -0000, James Jolley wrote: >I've never tried anything above the standard 44.1 sampling rate, perhaps the >software can't downsample