I got the information from Festool USA. I recontacted them and got updated information.
RO 125 Sanders Vlies A120 Coarse 5 125 mm Diameter Round 488107 has been replaced by part # 201131
RO 125 Sanders Vlies A280 Fine 5 125 mm Diameter Round 488108 has been replaced by part # 201132
DTS 400 Sander Vlies A120Coarse 10 100 x 150 mm Delta 489045 has been discontinued.
Of course, the last one is the one I REALLY need.