You're ripping a 2 CD set titled "Greatest Hits Volume I && II".
Individual discs in the case are labeled "Volume I 1988-1990" and "Volume II 1991-1994".
What album title do you give the individual music files from the first disc? Greatest Hits...
@CarlCravens
"Greatest Hits" for both disks. (Assuming the band name is visible elsewhere in the naming convention.)
a Schelling point for those who seek one