The GISS team just released version 2.0 of the Distributed Multi-Media Database ( a.k.a. dmmdb ), which includes a modified version of cortado, this is the last development that was due for G.I.S.S. 3.0.
all is documented and available from G.I.S.S. wiki :
http://giss.tv/wiki/index.php/Distributed_Multimedia_Database_System_Phase_2
but a bit of technical details as you all love them :