Do you get this distortion when you play your MP3’s over your home system? That’s the case, then welcome to the wide world of compressed music - you’re hearing the result of the compression that happens when you try to make a 10 MB file out of what wants to be a 100 MB wav. Putting it back on CD doesn’t add the lost data back, just as if you shrink a 1024 x 780 JPG to 102 x 78 pixels, and then blow it back up you don’t get back the lost pixels and the picture looks like hell.
The only recourse is to try to use lighter compression settings when ripping your MP3s (which will result in bigger files) or perhaps to try different Codecs for compressing them.
What I mean by lighter compression settings: use the highest bit rate setting your software will allow, and use a constant bitrate (not average or variable). Record to Stereo, with 44100 Hz sampling. Better yet, if you’re just trying to make a compilation CD of your own music, just rip those songs to wav files and make your CD using those. You can always make an MP3 copy to save to your iPod or whatever. If you don’t have control over how those MP3s are ripped ( :dubious: )then you’re stuck with what you get. Learn to enjoy the “chirping” .
If when you play your MP3s through your home stereo, you /don’t/ hear the “chirping”, then it might be a problem with your burner/burner software - Contrary to popular belief, standard home burning software is not designed to make pro-quality music CDs. Try using a slower burn-speed (depending on the age of your burner: as slow as 2x), and better quality blank CDs.