Stung by continuing criticism, the world’s second-largest music label, Sony BMG Music Entertainment, promised Friday to temporarily suspend making music CDs with antipiracy technology that can leave computers vulnerable to hackers. Sony defended its right to prevent customers from illegally copying music but said it will halt manufacturing CDs with the “XCP” technology as a precautionary measure. The antipiracy technology, which works only on Windows computers, prevents customers from making more than a few copies of the CD and prevents them from loading the CD’s songs onto Apple Computer’s popular iPod portable music players. Some other music players, which recognize Microsoft’s proprietary music format, would work.