Need some help to number a series of CD's

The series “The Complete Motown Singles” includes actually 14 releases.

The last CD number for “The Complete Motown Singles, Volume 11B: 1971” is “CD 65”

How can I renumber the next following 5 CDs from “The Complete Motown Singles, Volume 12A: 1972” from “CD 1 to CD 5” to “CD 66”, “CD 67”, “CD 68”
and also the 5 CDs from “The Complete Motown Singles, Volume 12B: 1972” to “CD 71”, “CD72”, “CD73”