Advice on import of large music collection

[Roy Boy]

I have been using Minimserver on a Synology DS1813 with the Lumin A1 and Lumin control point app. So far most the music in my collection has come from one of three sources
1)Ripped CDs into iTunes, then copied to NAS and album art tagged with BLISS
2) Downloads from HDtracks, Acoustic Sounds, etc
3) High res audio ripped from DVD or Blu-Ray via DVD audio extractor,
tagged with MusicTag Editor app on Mac , copied to NAS and album art tagged with BLISS

I have a new scenario that I need some help with. I received about 750GB
of wav files that were ripped on Windows XP with EAC. There is no apparent tagging. The files are organized in folders following the format of
ArtistName/AlbumName/Track#.TrackName. Knowing that wav files
have limited support for tagging I decided I needed to convert to another format. Given the number of albums and files I found XLD to bulk convert to AIFF (not sure if I should have chosen ALAC or FLAC). I copied the converted
files to the NAS and ran BLISS against it hoping it would automatically tag all the files for me...That did not happen. BLISS called them out as unsupported music files.. I could only see the files from the "Folder view" on the Lumin IPAD app. They were not visible from Artist, Album, Genre, etc.
So I tried to use MusicTag Editor on MAC to tag the albums one at a time which has always worked in the past. No luck that did not work either.

So my question is what would be the preferred or recommended approach to take this large collection of wav files into Minimserver and appropriately tagged them so they are visible normally in my Lumin control point IPAD App? Thanks in advance...

BTW I also tried to import the AIFF files into ITUNES hoping it would automatically tag them for me...No luck with that approach