Updated docs with per_disc ReplayGain configuration.
@@ -93,6 +93,8 @@ configuration file. The available options are:
integer values instead of the common ``REPLAYGAIN_`` tags with floating point
values. Requires the "ffmpeg" backend.
Default: ``Opus``.
+- **per_disc**: Calculate album ReplayGain on disc level instead of album level.
+ Default: ``no``
These options only work with the "command" backend:
