All this cd systems have the same problem. If you're using burned cd's sometimes they don't work so you need to close the session after burning in your burning program. If you're using original cd's it means that the device needs to be cleaned up (especially the lens) because the structure of a 5 cd combo device gets very dusty after a while. Also from my experience after cleaning it put a cd in each deck (even if it's off) so they could prevent it getting dustier again. Hope it helps, good luck!!
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