diff --git a/ChangeLog b/ChangeLog
index c01c7dcb..73d086b2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -11,6 +11,9 @@
     * src/sndfile.h.in src/sndfile.c src/common.h src/create_symbols_file.py
     Add API function sf_current_byterate().
 
+    * src/dwvw.c src/flac.c src/ogg_vorbis.c src/sds.c
+    Add codec specific handlers for current byterate.
+
 2012-02-24  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 
     * src/common.[ch]
diff --git a/src/dwvw.c b/src/dwvw.c
index 5b5a01b3..ddf86f63 100644
--- a/src/dwvw.c
+++ b/src/dwvw.c
@@ -61,7 +61,8 @@ static sf_count_t dwvw_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t le
 static sf_count_t dwvw_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ;
 
 static sf_count_t	dwvw_seek	(SF_PRIVATE *psf, int mode, sf_count_t offset) ;
-static int	dwvw_close	(SF_PRIVATE *psf) ;
+static int	dwvw_close		(SF_PRIVATE *psf) ;
+static int	dwvw_byterate	(SF_PRIVATE *psf) ;
 
 static int	dwvw_decode_data (SF_PRIVATE *psf, DWVW_PRIVATE *pdwvw, int *ptr, int len) ;
 static int	dwvw_decode_load_bits (SF_PRIVATE *psf, DWVW_PRIVATE *pdwvw, int bit_count) ;
@@ -112,6 +113,7 @@ dwvw_init (SF_PRIVATE *psf, int bitwidth)
 
 	psf->codec_close = dwvw_close ;
 	psf->seek = dwvw_seek ;
+	psf->byterate = dwvw_byterate ;
 
 	if (psf->file.mode == SFM_READ)
 	{	psf->sf.frames = psf_decode_frame_count (psf) ;
@@ -169,6 +171,14 @@ dwvw_seek	(SF_PRIVATE *psf, int UNUSED (mode), sf_count_t offset)
 	return	PSF_SEEK_ERROR ;
 } /* dwvw_seek */
 
+static int
+dwvw_byterate	(SF_PRIVATE *psf)
+{
+	if (psf->file.mode == SFM_READ)
+		return (psf->datalength * psf->sf.samplerate) / psf->sf.frames ;
+
+	return -1 ;
+} /* dwvw_byterate */
 
 /*==============================================================================
 */
diff --git a/src/flac.c b/src/flac.c
index 4f3fc34a..2f07e7a6 100644
--- a/src/flac.c
+++ b/src/flac.c
@@ -75,6 +75,7 @@ typedef struct
 } FLAC_TAG ;
 
 static sf_count_t	flac_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ;
+static int			flac_byterate (SF_PRIVATE *psf) ;
 static int			flac_close (SF_PRIVATE *psf) ;
 
 static int			flac_enc_init (SF_PRIVATE *psf) ;
@@ -659,6 +660,8 @@ flac_open	(SF_PRIVATE *psf)
 
 	psf->container_close = flac_close ;
 	psf->seek = flac_seek ;
+	psf->byterate = flac_byterate ;
+
 	psf->command = flac_command ;
 
 	switch (subformat)
@@ -1304,6 +1307,16 @@ flac_seek (SF_PRIVATE *psf, int UNUSED (mode), sf_count_t offset)
 	return ((sf_count_t) -1) ;
 } /* flac_seek */
 
+static int
+flac_byterate (SF_PRIVATE *psf)
+{
+	if (psf->file.mode == SFM_READ)
+		return (psf->datalength * psf->sf.samplerate) / psf->sf.frames ;
+
+	return -1 ;
+} /* flac_byterate */
+
+
 #else /* HAVE_EXTERNAL_LIBS */
 
 int
diff --git a/src/ogg_vorbis.c b/src/ogg_vorbis.c
index 7ade80cd..a12aec35 100644
--- a/src/ogg_vorbis.c
+++ b/src/ogg_vorbis.c
@@ -82,6 +82,7 @@ static int	vorbis_read_header (SF_PRIVATE *psf, int log_data) ;
 static int	vorbis_write_header (SF_PRIVATE *psf, int calc_length) ;
 static int	vorbis_close (SF_PRIVATE *psf) ;
 static int	vorbis_command (SF_PRIVATE *psf, int command, void *data, int datasize) ;
+static int	vorbis_byterate (SF_PRIVATE *psf) ;
 static sf_count_t	vorbis_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ;
 static sf_count_t	vorbis_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ;
 static sf_count_t	vorbis_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ;
@@ -530,6 +531,7 @@ ogg_vorbis_open (SF_PRIVATE *psf)
 
 	psf->seek = vorbis_seek ;
 	psf->command = vorbis_command ;
+	psf->byterate = vorbis_byterate ;
 
 	/* FIXME, FIXME, FIXME : Hack these here for now and correct later. */
 	psf->sf.format = SF_FORMAT_OGG | SF_FORMAT_VORBIS ;
@@ -873,6 +875,16 @@ vorbis_seek (SF_PRIVATE *psf, int UNUSED (mode), sf_count_t offset)
 	return 0 ;
 } /* vorbis_seek */
 
+
+static int
+vorbis_byterate (SF_PRIVATE *psf)
+{
+	if (psf->file.mode == SFM_READ)
+		return (psf->datalength * psf->sf.samplerate) / psf->sf.frames ;
+
+	return -1 ;
+} /* vorbis_byterate */
+
 /*==============================================================================
 **	Most of the following code was snipped from Mike Smith's ogginfo utility
 **	which is part of vorbis-tools.
diff --git a/src/sds.c b/src/sds.c
index 088ee260..7dd1d9d2 100644
--- a/src/sds.c
+++ b/src/sds.c
@@ -83,6 +83,7 @@ static sf_count_t sds_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len
 static sf_count_t sds_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ;
 
 static sf_count_t sds_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ;
+static int sds_byterate (SF_PRIVATE * psf) ;
 
 static int sds_2byte_read (SF_PRIVATE *psf, SDS_PRIVATE *psds) ;
 static int sds_3byte_read (SF_PRIVATE *psf, SDS_PRIVATE *psds) ;
@@ -132,8 +133,9 @@ sds_open	(SF_PRIVATE *psf)
 	if ((error = sds_init (psf, psds)) != 0)
 		return error ;
 
-	psf->seek = sds_seek ;
 	psf->container_close = sds_close ;
+	psf->seek = sds_seek ;
+	psf->byterate = sds_byterate ;
 
 	psf->blockwidth = 0 ;
 
@@ -752,6 +754,15 @@ sds_seek (SF_PRIVATE *psf, int mode, sf_count_t seek_from_start)
 	return seek_from_start ;
 } /* sds_seek */
 
+static int
+sds_byterate (SF_PRIVATE * psf)
+{
+	if (psf->file.mode == SFM_READ)
+		return (psf->datalength * psf->sf.samplerate) / psf->sf.frames ;
+
+	return -1 ;
+} /* sds_byterate */
+
 /*==============================================================================
 */