yeah, if you have tracks in the same album that are in a different folder, you need to select all of them (find more from same album) and analyze all at same time.

also, tracks that are not part of an album (blank album name) do not get album gain

Album Level is only calculated if all tracks on an album are analyzed simultaneously.

I too have problems on some albums that track volume is leveled in the tag but not the album volume. This seems to happen around 30-50% of the time and trying again doesn't resolve the issue. Changing the album name to a temp name seems to fix it....

MM 3.1.1.1261 gold
Win XP SP2, all patches
Athlon 3800+ X2, 2GB

Have noticed that afte the migration to MM 3.1 songs with missing Album Volume are shown in the Unleveld songs list, wasn't aware that such a field is available in MM before. Eearlier versions of MM haven't updated this field. Using the Analyze Volume function didn't help first because the option 'Only analyse Tracks with unknown Levelling Adjustment' was set and so the songs haven't been analysed. Wouldn't it be more logic if missing Album or Track Volume would be accepted as 'unknown Levelling'?