You can change the number of discs in an album. The tracks can be changed one at a time, or a whole cd at a time. Remember to make a backup before editing to be safe.
Select all the items from CD 1, Right click on the highlighted songs and choose "Get Info". Click in the popup that says you are editing multiple items.
For the item "Album" change it to just "Ultimate Drive", for item "Disc Number" change it to "1 of 4". Click OK to save.
Repeat for the other cd's, changing the disc number to "2 of 4", "3 of 4", and "4 of 4" (and also changing the "Album").
Remember to be careful to only edit fields/items that are the same for all the currently selected tracks when doing multiple songs at once.