I don't know of any retail outlet in Australia that sells MD media now days, A few years ago the supermarkets stopped stocking them here, up until 2010 you could buy them new at Sony Centres here, Prism80's and HiMD, you could also buy "laser " blanks at Jaycar. These days i get blank discs by buying them from people I know, or eBay, or gumtree. I'll pick up recorders and decks on online auction sites, often these will come with a number of used blanks. Seems to be ok. I'm building up a fair stockpile of discs, who knows how we will manage in the years to come.