No problem. This has been discussed quite a bit, and is absolutely something we’re aware of, and looking forward to improving in the future.
We know that in some cases, each disc in a box set needs to have its own metadata (including cover art, release date, credits, etc), distinct from that of the overarching set. When we build out this functionality, we’ll handle these cases in a truly first class way, but be aware this requires some pretty wide-ranging changes if we’re going to get this right.
We have a couple of ideas kicking around internally for what this might look like, but I don’t have a time frame for when that work might start. Additional options for adding and organizing multiple pieces of cover art within an album are coming soon and should help here, but changing the current definition of “discs” is a more long range project.
Hope that helps!