The laser went on my Sony mini system. It was about four years old (original cost �600) and I had let cement dust get in it; it was also placed against a damp wall in my student house. It cost �80 to fix, four years ago. The laser has just gone again and I am not bothering having it fixed this time; it would seem that on Sony's (or even that particular make) the lasers last 4 years. The laser has just gone in my parent's JVC mini system; it was two years old and cost �200. The repair was quoted at about �100. It all seems to depend on quality and make whether the laser goes rather a standard lifespan. Also keep your cd player clean, dry and don't drop it! Incidentally, an 'expert' advised me to stick with single disc rather than multi disc players as they are more durable and reliable.