Got another batch of early Japanese cassettes the other day, and have been converting them to usable .aif audio files. Antoine from Brutal Deluxe is helping me get a few of the more stubborn ones up and running, so those ones will arrive later I guess.
Anyway, check it out on my site here:
http://www.neoncluster.com/projects-apple2/apple2-jcassettes.html
Cheers
Phil