Big Finish subscriber Short Trips, half hour audios that come with a Main Range subscription, have generic CD art that’s not square and doesn’t match the look/style of most Big Finish audios. So I’ve photomanipped my own using the old Short Trips banner and adding public domain and NASA backgrounds.
All the subscriber Short Trips for a given year should import as different tracks of the same album. If they don’t, group them manually in iTunes by using Cmd/Cntrl-I to “Get Info” and applying an identical album name to all the tracks you want grouped, then click the “compilation by different artists” ticky box.
Under Get Info, you can also upload custom artwork for albums or individual tracks.
Feel free to use mine; just please don’t upload them elsewhere.