"I firmly believe that the industry are not that bothered because as I said before they would put blocks on their cds"
It can't be done, not reliably enough.
The industry, and more importantly the creatives who are the ones who get hurt the most, are immensely bothered by the whole thing.
With regards to CDs there really isn't much that can be done. Audio CDs have to adhere to a very strict standard so that they can be played on all players. Some companies did try to do things to CDs to stop people copying them but that breaks the compatibility and they often had to take the CD logo off of the discs because they were no longer "proper" CDs. Those CDs would then often fail to play on certain players, car stereos were a frequent victim of this.
Some companies went even further and put software on to stop music CDs being copied on a computer. However that ended up with Sony putting a very nasty and very buggy piece of software on their discs that left any PC that installed it with a gaping back door that hackers could use to get onto the machine. The got into an awful lot of legal trouble and had to offer to replace all of the discs with proper CDs without the bad software on them and pay compensation to those affected.
And after all that the discs protection was trivial to get around if you knew what you were doing on a computer. So the only people who had their machines broken by Sony were honest people who just wanted to hear the CD on their computer.
I think that was the end of music companies trying to protect CDs in that way. It's impossible, easy to get around, quite possibly illegal and leaves them open to very nasty lawsuits.
So, yes their bothered, very bothered.
And now their efforts are focussed on trying to stop the file sharing sites themselves, so you've got BT being threatened with court action and ordered to block one of the biggest offenders.
And then you've got people like me and Abra1d who work in industries affected by this and just ask that people stop stealing from us.
"But like shops that moan about the shoplifting but dont employ a security guard the expense of doing anything about it would cost more than what they lose."
Most people don't shoplift not because they're going to get caught but because the accept that it's stealing and that stealing is bad. Most people don't like to do bad things.
"Thank you for a nice discussion on the subject"
Discussion is the only way to resolve this huge problem. I don't believe that there is a technical solution to it and don't support the industry when it does try to block access to certain file sharing sites. The answer is for people to accept, as they do for shoplifting, that illegal file sharing is bad and that it really does hurt people. If people joined the dots up and realised that claiming to be a fan of something while simultaneously stealing from the creator of that something are incompatible concepts then it would die right down.
The OP who brought this whole thing up genuinely didn't seem to realise what they were really doing when they downloaded "free" music from places like limewire. Hopefully they'll now stop, all due to discussion.