Does it make mechanical noise while it is trying to read a disc? That would indicate a laser out of adjustment trying to focus. Otherwise you may just need to clean the lens with some rubbing alcohol and a q-tip. Let it dry well before you fire it up again. Most player issues are due to a dirty lens and most disc style lens cleaners are only meant to be used as a maintenance item.
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Does it make mechanical noise while it is trying to read a disc? That would indicate a laser out of adjustment trying to focus. Otherwise you may just need to clean the lens with some rubbing alcohol and a q-tip. Let it dry well before you fire it up again. Most player issues are due to a dirty lens and most disc style lens cleaners are only meant to be used as a maintenance item.