the best sony es changers, the carousel ''disk jockey's'', date back to 89-90ish. after that sony made them more plasticky. nak music banks are good, stick with the second gen and later 94-99. the third gen was actually a direct repurposing of their car audio music banks, which were good (i had one). if you don't mind commodity-grade stuff you can always find the 400-disc sony mega changers--
