Sony is in trouble but we might be the ones who lose out in the end, says technology commentator Bill Thompson. Sony says it has been using XCP for months Sony BMG, the record company part of the multinational corporation that makes laptops, TVs, movies and many other things, is in trouble this week thanks to a copy protection scheme it has used on a number of its CDs. The software, called Extended Copy Protection or XCP, hides itself on your hard drive using techniques normally reserved for viruses, worms and trojans, which use similar "rootkits" to evade detection. And...