I understand Jim. When I update the tags "Total Tracks" and "Total Disks" in JRiver and I do an "Update Tags (from library)" it is JRiver that is writing the information in the file.
This is an example it worked (in november 2016):
Artist Name : Santana
Track Title : «multiple values» Batuka; No One to Depend On; Taboo; Toussaint L'Overture; Everybody's Everything; Guajira; Jungle Strut; Everything's Coming Our Way; Para los Rumberos
Album Title : Santana III
Date : 2014
Genre : Rock
Composer :
Performer :
Album Artist : Santana
Track Number : «multiple values» 1; 2; 3; 4; 5; 6; 7; 8; 9
Total Tracks :
Disc Number : 1
Total Discs :
Comment :
<BPM> : «multiple values» 109; 108; 93; 106; 134; 125; 127; 98
<DYNAMIC RANGE (DR)> : «multiple values» 11; 12; 13
<DYNAMIC RANGE (R128)> : «multiple values» 7,3094701766967774; 8,2367696762084961; 6,7148900032043457; 4,0215201377868652; 4,7945399284362793; 5,0555400848388672; 4,880270004272461; 6,7028899192810059; 2,5517699718475342
<PEAK LEVEL (R128)> : «multiple values» -0,6 dBTP; -1,5 Left; -0,6 Right; -0,0 dBTP; -2,6 Left; -0,0 Right; -2,3 dBTP; -2,3 Left; -3,2 Right; -1,1 dBTP; -2,0 Left; -1,1 Right; -0,6 dBTP; -1,4 Left; -0,6 Right; -0,7 dBTP; -0,7 Left; -1,6 Right ...
<PEAK LEVEL (SAMPLE)> : «multiple values» -0,6 dB; -1,5 Left; -0,6 Right; -0,0 dB; -2,8 Left; -0,0 Right; -2,7 dB; -2,7 Left; -3,2 Right; -1,1 dB; -2,1 Left; -1,1 Right; -0,8 dB; -0,8 Left; -1,8 Right; -1,3 dB; -3,0 Left; -1,3 Right ...
<TOOL NAME> : Media Center
<TOOL VERSION> : 22.0.18
<TOTAL DISCS> : 1
<TOTAL TRACKS> : 9
<VOLUME LEVEL (R128)> : «multiple values» -9,3315401077270508; -8,0739498138427734; -6,9200100898742676; -8,6867599487304688; -9,5343303680419922; -6,750619888305664; -8,0700998306274414; -7,4382801055908203; -9,775400161743164
<VOLUME LEVEL (REPLAYGAIN)> : «multiple values» -4,3315401077270508; -3,0739500522613525; -1,920009970664978; -3,6867599487304688; -4,534329891204834; -1,7506200075149536; -3,0701000690460205; -2,4382801055908203; -4,775400161743164
And this is an example where it doesn't work in (in June 2017) :
Artist Name : Santana
Track Title : «multiple values» Yambu; Shake It; Anywhere You Want To Go; Fillmore East; Love Makes The World Go Round (Feat. Ronald Isley); Freedom In Your Mind (Feat. Ronald Isley); Choo Choo; All Aboard; Sueńos; Caminando ...
Album Title : Santana IV
Date : 2016
Genre : Rock
Composer :
Performer :
Album Artist : Santana
Track Number : «multiple values» 1; 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15; 16
Total Tracks :
Disc Number : 1
Total Discs :
Comment :
<BPM> : «multiple values» 96; 99; 127; 63; 133; 125; 83; 130; 131; 123; 65; 160
<COPYRIGHT> : (P) 2016 Santana IV Records
<DYNAMIC RANGE (DR)> : «multiple values» 8; 7; 12; 9
<DYNAMIC RANGE (R128)> : «multiple values» 4.7850198745727539; 3.3348100185394287; 3.8337099552154541; 4.632540225982666; 5.2760200500488281; 3.8024699687957764; 3.467210054397583; 1.3750300407409668; 7.608910083770752; 5.0584897994995117 ...
<PEAK LEVEL (R128)> : «multiple values» +1.1 dBTP; +1.1 Left; +1.1 Right; +0.8 dBTP; +0.8 Left; +0.6 Right; +1.4 dBTP; +1.4 Left; +1.1 Right; +0.2 dBTP; +0.2 Left; +0.2 Right; +1.4 dBTP; +0.8 Left; +1.4 Right; +2.2 dBTP; +2.2 Left; +0.8 Right ...
<PEAK LEVEL (SAMPLE)> : -0.2 dB; -0.2 Left; -0.2 Right
<TOOL NAME> : Media Center
<TOOL VERSION> : 22.0.110
<VOLUME LEVEL (R128)> : «multiple values» -12.1742000579833984; -13.3568496704101562; -12.0591096878051758; -8.1862001419067383; -14.2370395660400391; -13.6409502029418945; -12.667440414428711; -14.2701797485351562; -11.3322696685791016 ...
<VOLUME LEVEL (REPLAYGAIN)> : «multiple values» -7.1742000579833984; -8.3568496704101562; -7.059110164642334; -3.1861999034881592; -9.2370395660400391; -8.6409502029418945; -7.6674399375915527; -9.2701797485351562; -6.3322701454162598 ...
The fields <TOTAL DISKS> and <TOTAL TRACKS> are not updated in the last example.
Is it possible that JRiver is not transferring the information to the file ?