I need your advice here. I started the ybcr program with my 15 months old daughter with volume 1 onwards but not with the starter CD (she is watching volume 2 now). Appreciate if anyone of you can advise if i should go back to the starter CD. What is the difference between the starter Vs volume 1? Also what do they have in the last CD which is called "review"? I bought the CDs from a local shopping mall from Penang, Malaysia. They don't sell in one set & i don't even know there is a starter CD until i surf this forum. Thanks.