Hey all,
I recently discovered this Polish series put out by a label called 4EverMusic. Several volumes, many of them 2 discs, with titles like Romantic Klub80, Pop & Rock Klub80, Movie Klub80, Summer Klub80, Night Klub80, and Disco Klub80. I've purchased 6 volumes that have 80s 12" versions never on CD before. The guys who put these together either got the original masters or did astounding jobs remastering from vinyl--but they do give thanks to numerous labels inside for giving them the licenses to include the tracks and it appears the CDs are distributed by Warner Music Poland, so they may be original masters. It seems like they are doing what Ben Liebrand has been doing with the "Grand 12 Inches" series, attempting to preserve classic 12" mixes on digital format. Here's their output on the discogs site:
http://www.discogs.com/label/4everMUSIC
The compilations are a mix of 80s pop, new wave, R&B, dance, and europop, so if you are a fan of many different 80s genres, then you're really in for a treat.