Frequently Asked.

Here are some of the most common questions frequently asked by our customers and their answers. Please, take a look to these before asking.

What Tags does Meta support?

Meta supports almost all tags defined in the ID3v2 Specification, across all Metadata formats. Here's the full list, sorted alphabetically:

  • Album
  • Album Artist
  • Artist
  • BPM
  • Comments
  • Compilation (Part of)
  • Composer
  • Conductor
  • Copyright
  • Disc №
  • Discs
  • Encoder
  • Encoding Info
  • Encoding Time
  • File Owner
  • File Type
  • Genre
  • Grouping
  • Involved People
  • ISRC
  • Key (Musical)
  • Language
  • Length
  • Lyrics
  • Lyricist
  • Media Type
  • Mood
  • Musician Credits
  • Original Album
  • Original Artist
  • Original Filename
  • Original Lyricist
  • Original Date
  • Playlist Delay
  • Podcast (Flag)
  • Podcast Description
  • Podcast ID
  • Podcast URL
  • Produced Notice
  • Publisher / Label
  • Radio Name
  • Radio Owner
  • Rating
  • Release Time
  • Remix Artist
  • Sort Album
  • Sort Album Artist
  • Sort Artist
  • Sort Composer
  • Sort Title
  • Subtitle
  • Subtitle for Set
  • Tagging Time
  • Title
  • Track №
  • Tracks
  • Website
  • Year

How do you write an edited file to disk?

There is no need to explicitly save anything, Meta saves changes each time you commit editing (i.e. pressing return/enter in a textfield). Of course, you can Undo any changes you may not be satisfied with.

I edited WAVE (.wav) audio files with Meta, why are the Tags not showing in iTunes / Finder?

Simply put, iTunes doesn't access any tags embedded in WAV audio files, but only uses its own database: the iTunes Library. The sad part is that the iTunes library is only available to developers for reading information, which makes any 'fix' impossible. Why is a pertinent question. WAV files can contain metadata in multiple forms, INFO being the original specified way, which is supported in Meta, but it can unfortunately only store a limited set of keys. Meta and many other third party software thus rely on ID3v2. Due to the lack of a standard, multiple ways for writing ID3v2 tags into WAV files have emerged throughout different software, which caused a compatibility problem (That may explain why iTunes avoids it entirely). But there might be a possibility for support to be added later-on, as iTunes already supports ID3v2.4 in AIFF (which extends the same standard as WAV called RIFF). In the meantime, if you want to keep iTunes compatibility, your best bet is to convert to audio formats such as AIFF or ALAC. See how to do this using iTunes.

I have some audio files opened in program X, why aren't the changes I made using Meta showing?

There's a fair chance your program only reads metadata once (upon startup, or when scanning files) and doesn't automatically detect live changes to the files you are editing with Meta. Another possibility is that the program uses its own database, and hasn't refreshed the changes yet.


To show the changes, try reopening the program so that it parses the files' Metadata again, or try changing the current folder in your program's file browser, to force a refresh.

Why won't the tags show in macOS's Finder?

Up to Mac OSX 10.11, Finder.app could only read ID3v2.3 tags. Meta, by default writes ID3v2.4, but you can change the desired version in the app's Metadata preferences tab.

Accessing Tag capitalisation and string transforms

First, select a group of files you wish to edit, then use either method:

In the Sidebar



  1. Click on the desired tag's label. Click on the actual label, not the textfield. The tags that do offer string transform functionality will have a brighter label colour in the sidebar.
  2. Choose the desired string-transform operation (“Capitalise”, “to Titlecase”, etc…)

In the Files list



  1. Right click (or control-click) the selected files above the desired column/tag
  2. Select the column/tag's context menu. If you right-click above the “title” column, the menu will be called “title”
  3. Choose the desired string-transform operation (“Capitalise”, “to Titlecase”, etc…)

What is the difference between Capitalize and Titlecase?

Capitalize will make the initial letter of every word uppercase and everything else lowercase.


Titlecase behaves in a similar way, only it does not touch words that are already uppercase, and will apply some context: Terms like LP or EP will always be uppercase, and small words (articles, coordinating conjunctions) will be kept lowercase.

Does Meta support pulling track information and cover art from online services such as FreeDB or Discogs?

Unfortunately, not yet.