eXtra Klasyka -> eXtra Klasyka (blue XK logo)
http://redump.org/disc/31576/
eXtra Klasyka Hit -> eXtra Klasyka XK Hit
http://redump.org/disc/126069/
http://redump.org/disc/89879/
http://redump.org/disc/128435/
http://redump.org/disc/128134/
http://redump.org/disc/73836/
http://redump.org/disc/73834/
http://redump.org/disc/128716/
http://redump.org/disc/43861/
eXtra Klasyka Dodatek -> eXtra Klasyka XK Dodatek
http://redump.org/disc/128718/