I think mp3PRO sounds like a good format for streaming audio right now! I'd like your opinions on the 4 audio formats mentioned above. To me, WMA doesn't sound as good as MP3. I haven't heard AAC yet and would like more info about it as well as opinions from those who HAVE heard it and compared it to MP3/MP3PRO. Coding Technologies is coming out with something like MP3PRO but, for AAC called AAC+SBR. http://www.codingtechnologies.com/ is their website so, you can read up on some info if you wish. Who in here has heard MP3pro at 128 kbps? Does it sound the same as, or lower quality compared to a standard 256 kbps mp3? MP3pro's supposed to provide roughly double the quality in the same bandwidth so, that's why I'd like to know.