the 7" on ecstatic peace is pretty much the only readily available recording so far:
http://www.forcedexposure.com/bin/search.pl?search_string=mirror+dash&searchfield=ke yword
or check
www.yod.com
there was also a limited 12" that costed $200 or some similar ridiculous price.
i'm looking forward to the EP in the suscription series from threelobed.