Hi Chony,
I actually use a usb multicard reader & memory cards, sd,compactflash etc with my psr 1500.
I don't have loading time problems. I tried it with registrations ie 1 style per registration . Played thru flawlessly.

best wishes
[QUOTE]Originally posted by chony:
best wishes
Rikki 🧸

SX900, Kawai es920 piano Band in a Box 2021
V Arranger/Ketron SD2