"CD and DVD will be around for a lot longer. When they become obsolescent, there will a replacement and the best thing to do is transfer all your data to that. At least while it's digital there will be no loss of information."

Sadly CDs, etc are not 'a perfect record' - they are a 'potentially lossy' format - errors occur all the time, but till they get too many for the error correcting SW to fix, you will never know that the CD is detoriating...