Last night I captured one of the records for Robin Hood (Catalog #365). I then went to scan the book in, but realized this copy was a little beat-up. I knew I had another copy in my collection, and figured that book might be in better shape for scanning. After a couple of scans, I realized that they were actually different.
One of the first subtle differences you might see in the above covers, is that the "SEE, HEAR, and READ" are printed in different colors. Digging deeper, I realized that the text inside the books is COMPLETELY different. Listening to the record also confirmed the differences, as one has a female storyteller and the other has a male voice.
I would have expected that they would have made a new catalog number for the vast changes they made. I will certainly be keeping a close eye out for other instances of this.
You can flip through them side-by-side: