The first one is the MADE IN WEST GERMANY, with break between WEST and GERMANY and MADE IN W. GERMANY BY PDO etched around the center hole, variation of Candy-O. Contrary to what one might expect, the inserts were printed in the US and not in Alsdorf, Germany by Record Service.
The three other CDs are all variations of Shake It Up. Disc one, MADE IN WEST GERMANY BY POLYGRAM, and disc two, MADE IN WEST GERMANY with the break between IN and WEST, both bear catalog number 252 230, which matches the catalog number of the Japanese variation of this CD but not the catalog number that is printed on the inserts of the West German variations.
Disc three bears catalog number 252 330 and is MADE IN WEST GERMANY with break between WEST and GERMANY. There is no text etched around the center hole which is uncommon for Target CDs with this marginal inscription.