Just came across a CD / VCD / DVD shop at the 2nd or 3rd storey
or 4th Storey (sorry, can't remember exactly 
) of Centrepoint,
along the corridor leading to Cuppage (Not the Poh Heng VCD / DVD
shop there).
Can't remember if they have the edition you're lookin for, but you
can try your luck.
Good Luck! 