I also bought the HK set, I thought of getting the Taiwan version (as it got both English and Mandarin), but after I heard of the sales presentation, I bought the HK version. The major difference is the flash cards and the machine.
I need to work, but my maid helped to show the cards to baby and got the proper reading from the machine.
The most important thing is, my baby love Noddy very much when he watched the demo CD and after I got the whole set.