I've written back and forth to Panasonic a few times. At first they hadn't heard of SD-Jukebox lol but I pointed them to the Japanese page and they have been in touch with Japan. They have confirmed that V5 is the most recent English version available and they are going to get back to me about whether people can still buy it or not.

For me V2.4 works with my HP computer which has an internal card reader that is SD Secure compatible so I'm sticking with that for the moment. I'll let you know what more news I can get.
Help to preserve information about Technics Keyboards.
KN7000 KN6500 KN6000 KN5000 KN3000 KN2600 KN2000 KN1000 KN901 KN800 P50 WSA1 AX7 EX30 GA3 PR804 Liverpool Tyros 3