diff --git a/tinytag/tinytag.py b/tinytag/tinytag.py
index a7a8a21..8ba376d 100644
--- a/tinytag/tinytag.py
+++ b/tinytag/tinytag.py
@@ -924,8 +924,10 @@ class Ogg(TinyTag):
             'artist': 'artist',
             'date': 'year',
             'tracknumber': 'track',
+            'tracktotal': 'track_total',
             'totaltracks': 'track_total',
             'discnumber': 'disc',
+            'disctotal': 'disc_total',
             'totaldiscs': 'disc_total',
             'genre': 'genre',
             'description': 'comment',

diff --git a/tinytag/tests/test_all.py b/tinytag/tests/test_all.py
index 8f4421c..0b70517 100644
--- a/tinytag/tests/test_all.py
+++ b/tinytag/tests/test_all.py
@@ -230,7 +230,7 @@ testfiles = OrderedDict([
          'track': '1', 'disc': '1', 'title': 'Bad Apple!!', 'duration': 2.0, 'year': '2008.05.25',
          'filesize': 10000, 'artist': 'nomico',
          'album': 'Exserens - A selection of Alstroemeria Records',
-         'comment': 'ARCD0018 - Lovelight'}),
+         'comment': 'ARCD0018 - Lovelight', 'disc_total': '1', 'track_total': '13'}),
     ('samples/8khz_5s.opus',
         {'extra': {}, 'filesize': 7251, 'channels': 1, 'samplerate': 48000, 'duration': 5.0}),
 

Fail to read track_total, but it is ok in foobar
I got some tracks from qobuz.
I have some problems in reading the track_total. It showed 'null' in track_total. The others is OK, such as artist, album etc....
But its track_total seems OK, when checked in foobar.
Why?
The attachment are an example flac file
[19. I m Not The Man You Think I Am.zip](https://github.com/devsnd/tinytag/files/10875229/19.I.m.Not.The.Man.You.Think.I.Am.zip)

tinytag/tests/test_all.py::test_file_reading[samples/test.opus-expected47]
tinytag/tests/test_all.py::test_file_reading[samples/vbri.mp3-expected0] tinytag/tests/test_all.py::test_file_reading[samples/cbr.mp3-expected1] tinytag/tests/test_all.py::test_file_reading[samples/vbr_xing_header.mp3-expected2] tinytag/tests/test_all.py::test_file_reading[samples/vbr_xing_header_2channel.mp3-expected3] tinytag/tests/test_all.py::test_file_reading[samples/id3v22-test.mp3-expected4] tinytag/tests/test_all.py::test_file_reading[samples/silence-44-s-v1.mp3-expected5] tinytag/tests/test_all.py::test_file_reading[samples/id3v1-latin1.mp3-expected6] tinytag/tests/test_all.py::test_file_reading[samples/UTF16.mp3-expected7] tinytag/tests/test_all.py::test_file_reading[samples/utf-8-id3v2.mp3-expected8] tinytag/tests/test_all.py::test_file_reading[samples/empty_file.mp3-expected9] tinytag/tests/test_all.py::test_file_reading[samples/silence-44khz-56k-mono-1s.mp3-expected10] tinytag/tests/test_all.py::test_file_reading[samples/silence-22khz-mono-1s.mp3-expected11] tinytag/tests/test_all.py::test_file_reading[samples/id3v24-long-title.mp3-expected12] tinytag/tests/test_all.py::test_file_reading[samples/utf16be.mp3-expected13] tinytag/tests/test_all.py::test_file_reading[samples/id3v22_image.mp3-expected14] tinytag/tests/test_all.py::test_file_reading[samples/id3v22.TCO.genre.mp3-expected15] tinytag/tests/test_all.py::test_file_reading[samples/id3_comment_utf_16_with_bom.mp3-expected16] tinytag/tests/test_all.py::test_file_reading[samples/id3_comment_utf_16_double_bom.mp3-expected17] tinytag/tests/test_all.py::test_file_reading[samples/id3_genre_id_out_of_bounds.mp3-expected18] tinytag/tests/test_all.py::test_file_reading[samples/image-text-encoding.mp3-expected19] tinytag/tests/test_all.py::test_file_reading[samples/id3v1_does_not_overwrite_id3v2.mp3-expected20] tinytag/tests/test_all.py::test_file_reading[samples/nicotinetestdata.mp3-expected21] tinytag/tests/test_all.py::test_file_reading[samples/chinese_id3.mp3-expected22] tinytag/tests/test_all.py::test_file_reading[samples/cut_off_titles.mp3-expected23] tinytag/tests/test_all.py::test_file_reading[samples/id3_xxx_lang.mp3-expected24] tinytag/tests/test_all.py::test_file_reading[samples/mp3/vbr/vbr8.mp3-expected25] tinytag/tests/test_all.py::test_file_reading[samples/mp3/vbr/vbr8stereo.mp3-expected26] tinytag/tests/test_all.py::test_file_reading[samples/mp3/vbr/vbr11.mp3-expected27] tinytag/tests/test_all.py::test_file_reading[samples/mp3/vbr/vbr11stereo.mp3-expected28] tinytag/tests/test_all.py::test_file_reading[samples/mp3/vbr/vbr16.mp3-expected29] tinytag/tests/test_all.py::test_file_reading[samples/mp3/vbr/vbr16stereo.mp3-expected30] tinytag/tests/test_all.py::test_file_reading[samples/mp3/vbr/vbr22.mp3-expected31] tinytag/tests/test_all.py::test_file_reading[samples/mp3/vbr/vbr22stereo.mp3-expected32] tinytag/tests/test_all.py::test_file_reading[samples/mp3/vbr/vbr32.mp3-expected33] tinytag/tests/test_all.py::test_file_reading[samples/mp3/vbr/vbr32stereo.mp3-expected34] tinytag/tests/test_all.py::test_file_reading[samples/mp3/vbr/vbr44.mp3-expected35] tinytag/tests/test_all.py::test_file_reading[samples/mp3/vbr/vbr44stereo.mp3-expected36] tinytag/tests/test_all.py::test_file_reading[samples/mp3/vbr/vbr48.mp3-expected37] tinytag/tests/test_all.py::test_file_reading[samples/mp3/vbr/vbr48stereo.mp3-expected38] tinytag/tests/test_all.py::test_file_reading[samples/id3v24_genre_null_byte.mp3-expected39] tinytag/tests/test_all.py::test_file_reading[samples/vbr_xing_header_short.mp3-expected40] tinytag/tests/test_all.py::test_file_reading[samples/empty.ogg-expected41] tinytag/tests/test_all.py::test_file_reading[samples/multipagecomment.ogg-expected42] tinytag/tests/test_all.py::test_file_reading[samples/multipage-setup.ogg-expected43] tinytag/tests/test_all.py::test_file_reading[samples/test.ogg-expected44] tinytag/tests/test_all.py::test_file_reading[samples/corrupt_metadata.ogg-expected45] tinytag/tests/test_all.py::test_file_reading[samples/composer.ogg-expected46] tinytag/tests/test_all.py::test_file_reading[samples/8khz_5s.opus-expected48] tinytag/tests/test_all.py::test_file_reading[samples/test.wav-expected49] tinytag/tests/test_all.py::test_file_reading[samples/test3sMono.wav-expected50] tinytag/tests/test_all.py::test_file_reading[samples/test-tagged.wav-expected51] tinytag/tests/test_all.py::test_file_reading[samples/test-riff-tags.wav-expected52] tinytag/tests/test_all.py::test_file_reading[samples/silence-22khz-mono-1s.wav-expected53] tinytag/tests/test_all.py::test_file_reading[samples/id3_header_with_a_zero_byte.wav-expected54] tinytag/tests/test_all.py::test_file_reading[samples/adpcm.wav-expected55] tinytag/tests/test_all.py::test_file_reading[samples/riff_extra_zero.wav-expected56] tinytag/tests/test_all.py::test_file_reading[samples/riff_extra_zero_2.wav-expected57] tinytag/tests/test_all.py::test_file_reading[samples/flac1sMono.flac-expected58] tinytag/tests/test_all.py::test_file_reading[samples/flac453sStereo.flac-expected59] tinytag/tests/test_all.py::test_file_reading[samples/flac1.5sStereo.flac-expected60] tinytag/tests/test_all.py::test_file_reading[samples/flac_application.flac-expected61] tinytag/tests/test_all.py::test_file_reading[samples/no-tags.flac-expected62] tinytag/tests/test_all.py::test_file_reading[samples/variable-block.flac-expected63] tinytag/tests/test_all.py::test_file_reading[samples/106-invalid-streaminfo.flac-expected64] tinytag/tests/test_all.py::test_file_reading[samples/106-short-picture-block-size.flac-expected65] tinytag/tests/test_all.py::test_file_reading[samples/with_id3_header.flac-expected66] tinytag/tests/test_all.py::test_file_reading[samples/with_padded_id3_header.flac-expected67] tinytag/tests/test_all.py::test_file_reading[samples/with_padded_id3_header2.flac-expected68] tinytag/tests/test_all.py::test_file_reading[samples/flac_with_image.flac-expected69] tinytag/tests/test_all.py::test_file_reading[samples/test2.wma-expected70] tinytag/tests/test_all.py::test_file_reading[samples/lossless.wma-expected71] tinytag/tests/test_all.py::test_file_reading[samples/test.m4a-expected72] tinytag/tests/test_all.py::test_file_reading[samples/test2.m4a-expected73] tinytag/tests/test_all.py::test_file_reading[samples/iso8859_with_image.m4a-expected74] tinytag/tests/test_all.py::test_file_reading[samples/alac_file.m4a-expected75] tinytag/tests/test_all.py::test_file_reading[samples/mpeg4_desc_cmt.m4a-expected76] tinytag/tests/test_all.py::test_file_reading[samples/mpeg4_xa9des.m4a-expected77] tinytag/tests/test_all.py::test_file_reading[samples/test-tagged.aiff-expected78] tinytag/tests/test_all.py::test_file_reading[samples/test.aiff-expected79] tinytag/tests/test_all.py::test_file_reading[samples/pluck-pcm8.aiff-expected80] tinytag/tests/test_all.py::test_file_reading[samples/M1F1-mulawC-AFsp.afc-expected81] tinytag/tests/test_all.py::test_file_reading[samples/invalid_sample_rate.aiff-expected82] tinytag/tests/test_all.py::test_pathlib_compatibility tinytag/tests/test_all.py::test_binary_path_compatibility tinytag/tests/test_all.py::test_override_encoding tinytag/tests/test_all.py::test_mp3_length_estimation tinytag/tests/test_all.py::test_unpad tinytag/tests/test_all.py::test_mp3_image_loading tinytag/tests/test_all.py::test_mp3_id3v22_image_loading tinytag/tests/test_all.py::test_mp3_image_loading_without_description tinytag/tests/test_all.py::test_mp3_image_loading_with_utf8_description tinytag/tests/test_all.py::test_mp3_image_loading2 tinytag/tests/test_all.py::test_mp3_utf_8_invalid_string_raises_exception tinytag/tests/test_all.py::test_mp3_utf_8_invalid_string_can_be_ignored tinytag/tests/test_all.py::test_mp4_image_loading tinytag/tests/test_all.py::test_flac_image_loading tinytag/tests/test_all.py::test_ogg_image_loading tinytag/tests/test_all.py::test_aiff_image_loading tinytag/tests/test_all.py::test_detect_magic_headers[samples/detect_mp3_id3.x-ID3] tinytag/tests/test_all.py::test_detect_magic_headers[samples/detect_mp3_fffb.x-ID3] tinytag/tests/test_all.py::test_detect_magic_headers[samples/detect_ogg.x-Ogg] tinytag/tests/test_all.py::test_detect_magic_headers[samples/detect_wav.x-Wave] tinytag/tests/test_all.py::test_detect_magic_headers[samples/detect_flac.x-Flac] tinytag/tests/test_all.py::test_detect_magic_headers[samples/detect_wma.x-Wma] tinytag/tests/test_all.py::test_detect_magic_headers[samples/detect_mp4_m4a.x-MP4] tinytag/tests/test_all.py::test_detect_magic_headers[samples/detect_aiff.x-Aiff] tinytag/tests/test_all.py::test_show_hint_for_wrong_usage tinytag/tests/test_all.py::test_to_str