Testing higher Baudrates but forgot about floating points and integers so what I thopught was working about 1400 baud was just 2400 baud. Hopefully fixed now and testing away.
Okay. Baud rates can only be multiples of 1200 due to how the cas conversion software works, however 3600 baud does work on an Uno based Arduitape in the latest software version and will probably work on a Nano but your soldering needs to be better than mine (I can't figure out where the extra interference comes from just yet but I will). There is scrolling for 100 character filenames so tosec naming is fine. Even better news is that there is no longer any need for the filter so the only real need in soldering is adding pins for the LCD, buttons, motor control, audio out, vcc, and gnd.
