Type in the correct "album artist" name and copy it. Paste it to the "album artist" field in the tag of each of the folders in question. Click refresh and, it should be, all amalgamated into the one folder/album. You'll need to ensure the album name is standard across all the above as well.
If you use the term "Various Artists", then ensure that's in the "Album artist" field. If you use this convention, you only need to type "Vari" and the rest autofills - then hit <cr>. The actual artist (for each individual track) is then entered in the "Artist "field.
When you're ripping just ensure that something is filled in for the aforementioned fields prior to ripping. It won't matter what it is as long as something is there. Then when it's ripped you can tag the one album folder and update any fields at your leisure.