burning a multi-session cd into iso

I have a multi-session (osx/windows) cd that I'd like to create an iso from. Is there a way to create a single iso file with all the sessions included in it? Output from diskutil list disk2 is below. The identifier for the optical drive on my Mac is disk2. /dev/disk2 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: CD_partition_scheme *591.9 MB disk2 1: Apple_partition_scheme ⁨⁩ 515.4 MB disk2s1 2: Apple_partition_map ⁨⁩ 32.3 KB disk2s1s1 (free space) 276.8 MB - 3: Apple_HFS ⁨Master Install CD 238.6 MB disk2s1s2 –