Mp3 to CDA weirdness

[dashdoc]

I have been burning mp3s to audio disc for quite a while now, I have used EZCD4, Nero, and a few others, tonight I ran across something new, when I tried to burn a Mp3 disc , Nero gave me a corrupt Mp3 file error on one of the files. So I fired up EZCD 4.03 and it gave me a message saying that I did not have authorization to copy the same file, and for me to follow a link to a webpage to unlock the song, I clicked "OK" and went ahead with the burn, everything went fine, all the tracks were burned. Maybe I have been out of touch and missed something, but in the 18 months that I have been burning Mp3 to Audio discs I have never seen this. Anybody else ran across this?