Give music companies an excuse to reissue something from the catalog, and they leap forward like umbrella salesmen in a rainstorm. The industry has gone two decades without a new technology to replace the CD (which replaced the cassette, which replaced the LP, which replaced the 78--each successive format presenting an opportunity to sell the public something it already owned), and now it's under threat from a bunch of 22-year-old hackers. These days, if the companies are going to make an opportunistic buck, they've got to reach a little further than they did in the past.
Take Columbia's Legacy division, which...