Following its release on DVD in Singapore and in the U.S., 13 Beloved has finally been released on DVD in Hong Kong. It's available from DDD House for around US$7, which makes it a lower-cost option than the other two releases. It has English subtitles. They also have an even-lower-priced option: VCD, with Chinese and English subtitles. (Gee, that synposis on the DDD page has familiar ring to it. Hey! That's the one I wrote when I reviewed the film!)
Browsing the Thai titles, I see there is also 12 Begin, the short-film prequel to 13 Beloved. I'm not even sure this is available in Thailand. The DVD doesn't have English subtitles, but because I haven't seen this, I'm not even sure they are necessary.