@sshocker:
Apple Loops, REX2, and WAV format.
Currently they have a Yahoo Store, but are looking to change the shopping cart and gateway completely.
It's OK if it's not free. We'd like the best-for-the-money solution.
In the mean-time, I've found this shopping cart and system. It supports a digital delivery-type of system:
http://www.vpasp.com/virtprog/vpasptechnical.htm?id=3
@Reesy - Thanks - I'll look into those two shopping carts now.
Regards,
Scott