At least 2 Chinese companies manufactured Sega carts (Atomiswave, which is similar to Naomi) : Xing Le and San Star LTD. I don't know if they are considered to be bootlegs or unlicensed copies ?! What's the difference between bootleg and original cart ? Are they exact the same copies (hardware vise) of original carts or the only diff. is licensing (they break the copyright law) ?