What should be the issur? The producers dont own the cd once you buy it.
I guess the whole concept of intellectual property is lost on you. Is it the mention of intellect that gets you?
In all seriousness, I will dignify your question with a response. Have you ever had a photo shoot? Got something designed, written or drawn? Do you know anyone who does those things for a living? Tell them you are copying their work, and you'll likely get a more impassioned, erudite response.
The same way a photographer owns the photos he takes, even if they are of you(!), the singer/artist owns the material they produced. Radio stations are charged a royalty fee to play the song and consumers are permitted limitless enjoyment through purchase of the CD. But the artist still owns the "intellectual property" of the material, even if the physical CD is yours.
As to whether intellectual property exists in halacha, that is the primary question (although, as YitzyS mentions, there are other issues at play, too). The vast majority consider this to be included in dina d'malchusa dina, in which international copyright laws prohibit the unauthorized copying of intellectual property. Additionally, whether or not Halacha explicitly states it is theft or not, there are many things which simply do not pass the smell test, and are so blatantly wrong there isn't even a shailah to be asked. (You want to get into the sugya? Knock yourself out. But in terms of practical application? Justifications are absurd). Which brings us to:
And as for infringing on someones parnassa maybe they should find a parnassa thats not contingent on people not doing what they're allowed to do.
I'll leave it at
Wow.