The anime Azumanga Daioh has two English dubs, apparently - the first is the one done by ADV back sometime around 2004, which is also the same dub that most people are familiar with. The second dub, which currently I can't find audio of outside of a few Animax promos, broadcasted in Animax Asia sometime around 2012.
Azumanga Daioh is seen nowhere on the Animax Asia website, nor are any episodes online (however, at one time an episode of the dub was apparently posted on Dailymotion, but was later removed). Animax Asia has posted about Azumanga Daioh on their Facebook page in the past (www.facebook.com/animaxasiatv/videos/10151441177084989/ ), so it's likely this dub probably isn't fake either.
(Apologies if this doesn't belong in 'Unidentified Media,' but I wasn't sure if this should've went in 'Lost Media' either.)