Shown below is a table of all properties stored in the Library vs. which properties are stored in Tags. 'Yes' indicates that the information is included in the tag, 'No' indicates that it isn't, and 'Non-Standard' indicates that it is included, but that no clear stardard exists for how this field should be tagged, and consequently it may not be readable by other media players. Tags enclosed in square brackets are read but not written.
| Property | MP3 (ID3v2) | OGG / FLAC | WMA | AAC (M4A, M4P) | MPC (APEv2) | APE (APEv2) | WAV (RIFF)* |
| Track Title | Yes (TIT2) | Yes (TITLE) | Yes (Title) | Yes (nam) | Yes | Yes | Yes |
| Track Artist | Yes (TPE1) | Yes (ARTIST) | Yes (Author) | Yes (art) | Yes | Yes | Yes |
| Album | Yes (TALB) | Yes (ALBUM) | Yes (Album Title) | Yes (alb) | Yes | Yes | Yes |
| Album Artist | Yes (TPE2) | Yes (ALBUM ARTIST, [ALBUMARTIST], [ENSEMBLE]) | Yes (Album Artist) | Yes (aART) | Yes | Yes | Yes |
| Date (Year) | Yes (TDRC, TYER) | Yes (YEAR,DATE) | Yes (ReleaseDate,Year) | Yes (day) | Yes | Yes | Yes |
| Genre | Yes (TCON) | Yes (GENRE) | Yes (Genre) | Yes (gen,gnre) | Yes | Yes | Yes |
| Disc # | Yes (TPOS) | Yes (DISCNUMBER,DISC) | Yes (PartOfSet) | Yes (disk) | No | No | No |
| Track # | Yes (TRCK) | Yes (TRACKNUMBER) | Yes (Track/Track#) | Yes (trkn) | Yes | Yes | Yes |
| Rating | Non-Standard (POPM) | Non-Standard (RATING) | Non-Standard (SharedUserRating) | Non-Standard (rate) | Yes | Yes | Yes |
| Comment | Yes (COMM) | Yes (COMMENT [DESCRIPTION]) | Yes (Description) | Yes (cmt) | Yes | Yes | Yes |
| Album Art | Yes (folder or tag APIC) | Non-Standard (folder or COVERARTCOUNT, COVERARTMIMEx, COVERARTDESCRIPTIONx, COVERARTFILELINKx, COVERARTTYPEx, COVERARTx (Base64 encoded)) | Yes (folder or tag) | Yes (covr) + non-standard (AApr, AMIM, Adcp, Apty) | No (folder only) | No (folder only) | No (folder only) |
| Grouping | Yes (TIT1) | Yes (GROUPING) | Yes (ContentGroupDescription) | Yes (cgrp) | No | No | No |
| Composer | Yes (TCOM) | Yes (COMPOSER) | Yes (Composer) | Yes (wrt) | Yes | Yes | Yes |
| Conductor | Yes (TPE3) | Yes (CONDUCTOR) | Yes (Conductor) | Non-Standard (cond) | No | No | No |
| Lyricist | Yes (TEXT) | Yes (LYRICIST) | Yes (Writer) | Non-Standard (lyrc) | Yes | Yes | Yes |
| Involved People | Yes (IPLS) | Non-Standard (INVOLVED PEOPLE) | No | Non-Standard (peop) | No | No | No |
| Original Title | Yes (TOAL) | Non-Standard (ORIGINAL TITLE or ORIGINAL ALBUM) | Yes (OriginalAlbumTitle) |
Non-Standard (otit) |
No | No | No |
| Original Artist | Yes (TOPE) | Non-Standard (ORIGINAL ARTIST) | Yes (OriginalArtist) | Non-Standard (oart) | No | No | No |
| Original Lyricist | Yes (TOLY) | Non-Standard (ORIGINAL LYRICIST) | Yes (OriginalLyricist) | Non-Standard (olyr) | No | No | No |
| Original Date (Year) | Yes (TORY) | Non-Standard (ORIGINAL YEAR) | Yes (OriginalReleaseYear) | Non-Standard (oday) | No | No | No |
| Beats Per Minute | Yes (TBPM) | Yes (BPM) | Yes (BeatsPerMinute) | Yes (tmpo) | No | No | No |
| ISRC | Yes (TSRC) | Yes (ISRC) | Yes (ISRC) | Non-Standard (isrc) | Yes | No | Yes |
| Publisher | Yes (TPUB) | Yes (ORGANIZATION) | Yes (Publisher) | Non-Standard (publ) | Yes | Yes | Yes |
| Encoder | Yes (TSSE) | Yes (ENCODER) | Yes (ToolName) | Yes (ctoo) | Yes | Yes | Yes |
| Copyright | Yes (TCOP) | Yes (COPYRIGHT) | Yes (Copyright) | Yes (cprt) | Yes | Yes | Yes |
| Classification: Tempo | Non-Standard (COMM:Songs-DB_Tempo) | Non-Standard (TEMPO) | Non-Standard (Tempo) | Non-Standard (empo) | No | No | No |
| Classification: Mood | Yes (TMOO) | Yes (MOOD) | Yes (Mood) | Non-Standard (mood) | No | No | No |
| Classification: Occasion | Non-Standard (COMM:Songs-DB_Occasion) | Non-Standard (OCCASION) | Non-Standard (Occasion) | Non-Standard (occa) | No | No | No |
| Classification: Quality | Non-Standard (COMM:Songs-DB_Preference) | Non-Standard (QUALITY) | Non-Standard (Quality) | Non-Standard (qual) | No | No | No |
| Lyrics | Yes (USLT) | Yes (LYRICS) | Yes (Lyrics) | Yes (lyr) | No | No | No |
| Custom Field X | Non-Standard (COMM:Songs-DB_CustomX) | Non-Standard (CUSTOMX) | Non-Standard (UserCustomX) | Non-Standard (cusX) | No | No | No |
| Volume Leveling Coefficient | Yes (RVA2, RGAD, TXXX:replaygain_track_gain, replaygain_track_peak, replaygain_album_gain | Yes (REPLAYGAIN_TRACK_PEAK, REPLAYGAIN_TRACK_GAIN, REPLAYGAIN_ALBUM_GAIN) | Non-Standard (replaygain_track_gain, replaygain_track_peak, replaygain_album_gain) | Non-Standard (replaygain_track_gain, replaygain_track_peak, replaygain_album_gain) | Yes | Yes | Yes |
| Times Played | No | No | No | No | No | No | No |
| Related Library Entry (for Tracks on Virtual CD) | No | No | No | No | No | No | No |
Note: Several non-standard tags written by MusicMatch are read but not written, since they are in a non standard format (Preference, Mood, Tempo, Occasion). For MPC and APE Tracks, APEv1 tags are read if APEv2 tags are absent.
*MusicMatch, AudioGrabber, and Broadcast Software International InfoEdit tags are supported for .wav files.