I don't understand WHY they can't be played in Car stereos?
That doesn't make a lot of sense to me.....
Because the DRM protection requires your 'player' have a speical chip in to decode the protection and let you play the disk.
So much 'hardware' is out there that doesn't fit the bill, (ie old car cd players can't play 'burned' cds) that most SMART people avoid throwing the baby out with the bathwater like they did here.
Even for software this is soon... even MS didn't go that far on the PC yet... never thought RIAA would be so retahdid.
The CD is probably violating Philips "Red Book" CD Digital Audio standard. They might be intentionally introducing too many errors in the data or making the disc less reflective than it is supposed to be.
It doesn't say you can't - it's basically saying that it "might not work" in the car stereo - perhaps due to an incompatibility with the copy protection.
Although it does smell like a hoax to me...
Different kinds CD players use some different basic technology. IOW, most home players are made one way, portables another, car players another, and computer CD drives another. Turns out that many car players are made a lot like computer CD drives (especially if you have one that plays MP3s), so discs designed not to work in computers might also not work in cars.