I make rice wine very often, I buy yeast balls from ebay for it. it is a very easy, very tasty wine to make and drink. My basic recipe is:
8 cups (dry) sticky or jasmine rice, soak for at least 1 hr rinse until water is clear
Cook or steam rice (I've had best results from cooked) let rice cool to room temp
crush 5/6 yeast balls, they contain the Koji and yeast mix well into rice
put in a gallon jar with airlock
21-30 days later strain, and enjoy or put in fridge and let clear then enjoy.
I usually add pineapple or tart cherry juice for extra flavoring, I don't like a sweet juice in this because there is always a lot of sugar left over after fermentation has finished.