On our trip to Battambang and Siem Reap we visited a vinery (its on the way to the Banan Temple). As a German coming from one of the most popular vine regions Rheinhessen I was really curious about Cambodian Vine. Unfortunatly they did't have some red wine but the rosé one. We tried one - uncooled - and, hmm, it was different to our taste. It wasn't that bad as expected but the color was more brown then rosé. Much better was the whiskey - cause we were there at noon, we just tried some drops.
If you are around Battambang, you should make a stop there anyway. More bout the Wine from cambodia you can read in an article called " Amid emerald rice fields, Cambodia's first winery startles but pleases"