Please write other replaygain tags to file

[MrSimmo]

Would it be possible to add the ability to add other replaygain tags to the output file(s)?

For example:

Tag Value
REPLAYGAIN_ALGORITHM ITU-R BS.1770
REPLAYGAIN_REFERENCE_LOUDNESS -23 LUFS

This would show someone (or a player) what the replaygain values are associated with and the target output levels.

[thenktor]

I think this is a really good idea to have this information available. At least loudgain adds REPLAYGAIN_REFERENCE_LOUDNESS tags.
I'd also add the "Reference" to the output csv.

[DrZAjV]

Before this, someone mentioned it. The developers, considering compatibility, will not add irrelevant information to the audio files. Please refer to the previous post.

[thenktor]

This is not irrelevant information. If you are not using the default target loudness you really want to know which target loudness was used on the files.
Such an information also would be needed for a player to play files from different sources with different target loudness at the same volume level.
Furthermore even in the Musicbrainz Picard plugin there is a checkbox to add the REPLAYGAIN_REFERENCE_LOUDNESS tags.