My camcorder has been sitting for at least 6 years. I charged the batteries and began playing old tapes. At first they played fine. Now they play almost in slow-motion with the audio going in and out

The only thing that you can try to do yourself is to run a head cleaner for about 5 to 10 seconds to see if that will clean up the heads. You might also try using direct power from an a/c adapter if you have one. Batteries that sit unused can go bad over time. Other than that, your mechanism may need repair or repairs may need to be done on the connections between your mechanism and your main pcb. Over time, those flex cables will oxidize and not make good contact with your board. These types of repairs should be done by an experienced technician.

Hope this has helped you.
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