Some questions:
1. What is the issur in copying a CD?
2. Does the radio station pay the people who own the rights to the songs? Should they?
3. Does everyone have to agree, or can there be a difference of opinion?
4. Assume it’s true that “I wouldn’t buy it anyway” is a slippery slope because if that were true nobody would buy music because everyone could copy it. Does that mean that copying is stealing, or does it mean that charging money for CDs is ona’ah?
5. Do we assume that everyone else is acting k’din, or can we be skeptical of them as well? For example, can we assume because a song is played at weddings that one may perform a song? Or should we worry that they also ought to be paying for it?