Ive been through about four cassette adapters, trying to see if the would work with the cassette player, and all of them kept switching sides and spit out. Is the anyone who knows a solution to this? Oh, and its a 2001 s type

 

The unit senses that one of the rolls is not spinning and supposes that the tape is faulty.
As they say, this is not a fault, but a feature.

 

It's Time To Upgrade.