Plural came out on Fragil -- www.fragildiscos.com -- but I'm not sure if you can mail order from them directly; the link to an online shop (www.submarino.com.ar) leads to a 404. Given the state of the Argentine economy, coupled with the dismal condition of the dotcom economy, that's not much of a surprise. I'd try emailing Fragil; if you don't have any luck with them, let me know and I can see if Gustavo has any to sell personally.
Cheers
Philip