How do you translate the Roman numeral IV (4) to the ID3tag "track number"?
The official description says:
TRCK: The 'Track number/Position in set' frame is a numeric
string containing the order number of the audio-file on its original
recording. This may be extended with a "/" character and a numeric
string containing the total numer of tracks/elements on the original
recording. E.g. "4/9".
Should this be 4/9 for the asked example?
And what about @mfmeulenbelt's example with the W O R L D P E A C E !?