Finally official CDs of the two first LPs, 1981 and 1983 (release date 3 Nov 2017)
http://www.angelair.co.uk/?tcp_product=data-opera-electronica
http://www.angelair.co.uk/?tcp_product=data-2-time
They could both have added a couple more tracks each, but perhaps George Kajanus didn't find the tapes
or did not like the mixes, who knows.
They are not yet listed at amazon
/JW
http://www.discog.info/data.html