I did it! I made my own booze :)
I had this drink in S.Korea when I visited in 2009, and haven't been able to find it in Canada. A wonderful story about this rice wine: I visited the local Korean grocer after watching this video, armed with the names of the ingredients I needed. I asked the old Korean man at the store for 'Nuruk' (wheat yeast) and he pointed me towards a shelf and quizzically asked "Makgeolli?". We both had a laugh when we realized that he and I both knew I was going home to make hooch. Then he showed me a bag near the Nuruk that read 'Makgeolli Mix'! There's already a kit with rice, yeast, and a filter bag that you can buy to make your own Makgeolli!