Sorry, guess I should have been a little more descript or said auto batch.
One of the nice, well the only thing I even use WMP for besides creating useless PITA HS (hidden/system) crap files
is it does help fill in the empty tag fields on many files w/o user input.(ie.. stuff I didn't know, have available or to lazy to enter at the time

)
I know WMP uses AMG so lots of (Import) not US version releases aren't usually there.
However I've found due to AMG's very inconsistent/incorrect titling that many tracks not
found automatically are found when using WMP's manual look up.
Problem there besides being manual is that it then rewrites -all- tag info regardless
unlike in auto batch mode where you can set it to just download & write the missing information.
Currently my crazy work around is to load those files in TGF tag edit window prior, look them up in WMP in which it (re)writes
-all- tag info, then switch back to the TGF screen re(apply) the -good correct- data & update the tags back.
This works somewhat but is a real pain in the arse especially with regard to VA releases.
My other work around is to just rerun it through the MB tagger to clean up the junk but is a big waste of there server time/bandwidth.