Lebrecht: bargain CDs at risk

I recently acquired a lovely CD of Maria Callas singing the lead in Norma re-issued on Naxos for the bargain price of 15 quid. The copyright on this 1953 recording had lapsed after 50 years. I had then been looking forward to snapping up many more such reissues. (I have also been able to get some handy box sets of Duke Ellington and Louis Armstrong from Proper Records thanks to this bargain-creating law.) But apparently all this potential bounty for CD-collectors is at risk. Norman Lebrecht informs us that the record companies, led by EMI, are fighting to extend their period of copyright.