I use this page a lot as a reference
- What do the "T = nn" mean in the Matroska column mean? Some have a field name but many are just T=30
Guess: Text field with nn characters max??
- What do the 'ditto' marks mean in the ID3v2.4 column mean? Usually I've only ever seem 'ditto' used for the item above, never to the left
Guess: Same tag as the ID3v2.3 column??
I couldn't find any legend or interpretation on the page
If the page could be made a little clearer I think it'd help