Adding files to iTunes: iTunes adds them in no particular order

I have some cds that my laptop won't read. So I had to import them on my other pc, and later add them to my laptop's library (they are mp3 files now). No matter which way I add them (1: having windows explorer in a smaller window over maximized itunes window and dragging them to the library or 2: using Add Folder to library) iTunes will add them in disorder.

When I import a cd, it imports the songs in track listing order. I keep my library in "added" order.
When I add them to the library as explained above, iTunes does so in no particular order, and if I try to do it again, it does so in yet another order. Totally arbitrary order. Not alphabetical title, not track number, not size or time, totally no particular order.
I want the files to be added (and so, displayed in track listing order when "added" sort order) in track listing order. Is there a way to do this other than adding the files one by one?
This is a 20-cd box with 440 songs, it would be suicidal.

As I already mentioned, I want this because I keep the library as sort by "added", and anyway unless you keep it ordered by track number, which is stupid as it would sort all songs in the library i assume by track number, they should be imported as track number first.

Thanks