why do cd players "sometimes" not read a disc?

My Lexicon RT-20 is sometimes refusing to read a disc that has just been playing?

ptss09-20-2013 3:55am

czarivey Details Discussions Posts This discussion Message User 4,494 posts 09-20-2013 at 02:32pm Copy Comment URL Report Comment Edit Delete perhaps laser pick up is dusty or dirty(prefer opening and cleaning explicively vs. using clean disk that never works), or as gears moving it gets misaligned within time. paid lotsa money, than gotta ship it tofrom repair facility... that's why i love my analogue!
czarivey Details Discussions Posts This discussion Message User 4,494 posts 09-21-2013 at 06:50pm Copy Comment URL Report Comment Edit Delete Kng, I love my music server too!