Very recently Sony have been in the shit for a similar thing - their copy protection system makes you listen to the protected cd only through their own software when you play it on a pc, to prevent copying. The problem with this being that hackers can use this software to hide their own code on your machine, and if you try to remove the software it's very easy to fuck up your windows install and make it useless. Luckily they got what they deserved on this one - sued instantly, huge out of court settlement, have to recall all of the cds with this on, have to exchange the cds people have already bought for clean ones, can't make any more cds with the software on, etc. Dicks.