if you set itunes to manage your music manually there is a way.
First you import both albums. Then find one of the actual files in the music folder and delete it. In iTunes there should be a ! mark next to the track now. When you try and play it it will ask you to find it on the disk. Just navigate to the other copy and select it. and now both entries point to the same file but are two different listing in iTunes.
If you try to consolidate the library or have iTunes reorganize things I have no idea what will happen.