Delete incorrect entry, or how to merge with different number of tracks?

This entry is incorrect:

and this one is correct:

The CD was released only once and had songs 1 and 2 as a single track index. The 5-track CD does not exist.

But the difference in tracks means I cannot merge the releases.

What is the right way to deal with this?

Ah, append then remove medium. That’s an easy way to remove a whole entry.
I could append to the correct CD to get some of the annotations.