diff --git a/doc/ezstream.1.in.in b/doc/ezstream.1.in.in
index c7b1e3b..97ac8a8 100644
--- a/doc/ezstream.1.in.in
+++ b/doc/ezstream.1.in.in
@@ -343,13 +343,15 @@ Default:
 .Pq Mandatory.
 The stream format.
 .Pp
-.Bl -tag -width VORBIS -compact
-.It Ar Vorbis
-Ogg Vorbis audio format
+.Bl -tag -width Matroska -compact
+.It Ar Ogg
+Ogg media format
 .It Ar MP3
 MP3 audio format
-.It Ar Theora
-Ogg Theora video format
+.It Ar WebM
+WebM media format
+.It Ar Matroska
+Matroska media format
 .El
 .It Sy \&<encoder\ /\&>
 Use the encoder configuration with the provided symbolic name
diff --git a/examples/ezstream-file_template.xml b/examples/ezstream-file_template.xml
index d016648..832a5a6 100644
--- a/examples/ezstream-file_template.xml
+++ b/examples/ezstream-file_template.xml
@@ -21,7 +21,7 @@
   <streams>
     <stream>
       <mountpoint>/stream.ogg</mountpoint>
-      <format>Vorbis</format>
+      <format>Ogg</format>
       <encoder>OggEnc-Q1.5</encoder>
     </stream>
   </streams>
@@ -56,7 +56,7 @@
   <encoders>
     <encoder>
       <name>OggEnc-Q1.5</name>
-      <format>Vorbis</format>
+      <format>Ogg</format>
       <program>oggenc -r -B 16 -C 2 -R 44100 --raw-endianness 0 -q 1.5 -t @M@ -</program>
     </encoder>
 
diff --git a/examples/ezstream-full.xml b/examples/ezstream-full.xml
index 2cd4306..eaf94e2 100644
--- a/examples/ezstream-full.xml
+++ b/examples/ezstream-full.xml
@@ -100,8 +100,8 @@
         -->
       <public>No</public>
 
-      <!-- Stream format: Vorbis, MP3, Theora -->
-      <format>Vorbis</format>
+      <!-- Stream format: Ogg, MP3, WebM, Matroska -->
+      <format>Ogg</format>
 
       <!-- Encoder name (defined below) to use for (re)encoding -->
       <encoder>OggEnc-Q1.5</encoder>
@@ -198,7 +198,7 @@
       <!-- Encoder name -->
       <name>OggEnc-Q1.5</name>
       <!-- Output stream format -->
-      <format>Vorbis</format>
+      <format>Ogg</format>
       <!-- Program and options -->
       <program>oggenc -r -B 16 -C 2 -R 44100 --raw-endianness 1 -q 1.5 -t @M@ -</program>
     </encoder>
diff --git a/examples/ezstream-metadata.xml b/examples/ezstream-metadata.xml
index 3a99f1f..54a95e5 100644
--- a/examples/ezstream-metadata.xml
+++ b/examples/ezstream-metadata.xml
@@ -16,7 +16,7 @@
   <streams>
     <stream>
       <mountpoint>/stream.ogg</mountpoint>
-      <format>Vorbis</format>
+      <format>Ogg</format>
     </stream>
   </streams>
 
diff --git a/examples/ezstream-minimal.xml b/examples/ezstream-minimal.xml
index 747b9a2..2e8f7d4 100644
--- a/examples/ezstream-minimal.xml
+++ b/examples/ezstream-minimal.xml
@@ -3,7 +3,7 @@
 <!--
   EXAMPLE: A valid configuration that contains the absolute minimum
 
-  This configuration streams Ogg Vorbis files as-is.
+  This configuration streams Ogg files as-is.
   -->
 
 <ezstream>
@@ -18,7 +18,7 @@
   <streams>
     <stream>
       <mountpoint>/stream.ogg</mountpoint>
-      <format>Vorbis</format>
+      <format>Ogg</format>
     </stream>
   </streams>
 
diff --git a/examples/ezstream-stdin.xml b/examples/ezstream-stdin.xml
index a11c1bc..d622d75 100644
--- a/examples/ezstream-stdin.xml
+++ b/examples/ezstream-stdin.xml
@@ -18,7 +18,7 @@
   <streams>
     <stream>
       <mountpoint>/stream.ogg</mountpoint>
-      <format>Vorbis</format>
+      <format>Ogg</format>
     </stream>
   </streams>
 
diff --git a/examples/ezstream-video.xml b/examples/ezstream-video.xml
index 0ff1f4c..828bb40 100644
--- a/examples/ezstream-video.xml
+++ b/examples/ezstream-video.xml
@@ -16,7 +16,7 @@
   <streams>
     <stream>
       <mountpoint>/video.ogg</mountpoint>
-      <format>Theora</format>
+      <format>Ogg</format>
       <!-- No encoder configured (see below). -->
     </stream>
   </streams>
diff --git a/src/cfg_stream.c b/src/cfg_stream.c
index 892e5e4..e48bd99 100644
--- a/src/cfg_stream.c
+++ b/src/cfg_stream.c
@@ -169,12 +169,14 @@ cfg_stream_destroy(struct cfg_stream **s_p)
 int
 cfg_stream_str2fmt(const char *str, enum cfg_stream_format *fmt_p)
 {
-	if (0 == strcasecmp(str, CFG_SFMT_VORBIS)) {
-		*fmt_p = CFG_STREAM_VORBIS;
+	if (0 == strcasecmp(str, CFG_SFMT_OGG)) {
+		*fmt_p = CFG_STREAM_OGG;
 	} else if (0 == strcasecmp(str, CFG_SFMT_MP3)) {
 		*fmt_p = CFG_STREAM_MP3;
-	} else if (0 == strcasecmp(str, CFG_SFMT_THEORA)) {
-		*fmt_p = CFG_STREAM_THEORA;
+	} else if (0 == strcasecmp(str, CFG_SFMT_WEBM)) {
+		*fmt_p = CFG_STREAM_WEBM;
+	} else if (0 == strcasecmp(str, CFG_SFMT_MATROSKA)) {
+		*fmt_p = CFG_STREAM_MATROSKA;
 	} else
 		return (-1);
 	return (0);
@@ -184,12 +186,14 @@ const char *
 cfg_stream_fmt2str(enum cfg_stream_format fmt)
 {
 	switch (fmt) {
-	case CFG_STREAM_VORBIS:
-		return (CFG_SFMT_VORBIS);
+	case CFG_STREAM_OGG:
+		return (CFG_SFMT_OGG);
 	case CFG_STREAM_MP3:
 		return (CFG_SFMT_MP3);
-	case CFG_STREAM_THEORA:
-		return (CFG_SFMT_THEORA);
+	case CFG_STREAM_WEBM:
+		return (CFG_SFMT_WEBM);
+	case CFG_STREAM_MATROSKA:
+		return (CFG_SFMT_MATROSKA);
 	default:
 		return (NULL);
 	}
diff --git a/src/cfg_stream.h b/src/cfg_stream.h
index bd9e6df..32da6d7 100644
--- a/src/cfg_stream.h
+++ b/src/cfg_stream.h
@@ -17,17 +17,19 @@
 #ifndef __CFG_STREAM_H__
 #define __CFG_STREAM_H__
 
-#define CFG_SFMT_VORBIS 	"VORBIS"
+#define CFG_SFMT_OGG		"Ogg"
 #define CFG_SFMT_MP3		"MP3"
-#define CFG_SFMT_THEORA 	"THEORA"
+#define CFG_SFMT_WEBM		"WebM"
+#define CFG_SFMT_MATROSKA	"Matroska"
 
 enum cfg_stream_format {
 	CFG_STREAM_INVALID = 0,
-	CFG_STREAM_VORBIS,
+	CFG_STREAM_OGG,
 	CFG_STREAM_MP3,
-	CFG_STREAM_THEORA,
-	CFG_STREAM_MIN = CFG_STREAM_VORBIS,
-	CFG_STREAM_MAX = CFG_STREAM_THEORA,
+	CFG_STREAM_WEBM,
+	CFG_STREAM_MATROSKA,
+	CFG_STREAM_MIN = CFG_STREAM_OGG,
+	CFG_STREAM_MAX = CFG_STREAM_MATROSKA,
 };
 
 typedef struct cfg_stream *		cfg_stream_t;
diff --git a/src/ezstream-cfgmigrate.c b/src/ezstream-cfgmigrate.c
index b460f09..4561248 100644
--- a/src/ezstream-cfgmigrate.c
+++ b/src/ezstream-cfgmigrate.c
@@ -206,9 +206,15 @@ _parse_ezconfig0(EZCONFIG *ez)
 	if (ez->password)
 		ENTITY_SET(srv, srv_list, cfg_server_set_password,
 		    "<sourcepassword>", ez->password);
-	if (ez->format)
-		ENTITY_SET(str, str_list, cfg_stream_set_format,
-		    "<format>", ez->format);
+	if (ez->format) {
+		if (0 == strcasecmp(ez->format, "vorbis") ||
+		    0 == strcasecmp(ez->format, "theora"))
+			ENTITY_SET(str, str_list, cfg_stream_set_format,
+			    "<format>", "Ogg");
+		else
+			ENTITY_SET(str, str_list, cfg_stream_set_format,
+			    "<format>", ez->format);
+	}
 	if (ez->fileName) {
 		if (0 == strcasecmp(ez->fileName, "stdin"))
 			ENTITY_SET(in, in_list, cfg_intake_set_type,
@@ -281,9 +287,15 @@ _parse_ezconfig0(EZCONFIG *ez)
 		    "<svrinfoquality>", ez->serverQuality);
 	ENTITY_SET(str, str_list, cfg_stream_set_public,
 	    "<svrinfopublic>", ez->serverPublic ? "yes" : "no");
-	if (ez->reencode)
-		ENTITY_SET(str, str_list, cfg_stream_set_encoder, "<reencode>",
-		    ez->format);
+	if (ez->reencode) {
+		if (0 == strcasecmp(ez->format, "vorbis") ||
+		    0 == strcasecmp(ez->format, "theora"))
+			ENTITY_SET(str, str_list, cfg_stream_set_encoder,
+			    "<reencode>", "Ogg");
+		else
+			ENTITY_SET(str, str_list, cfg_stream_set_encoder,
+			    "<reencode>", ez->format);
+	}
 
 	for (i = 0; i < MAX_FORMAT_ENCDEC; i++) {
 		FORMAT_ENCDEC	*ed = ez->encoderDecoders[i];
@@ -298,10 +310,26 @@ _parse_ezconfig0(EZCONFIG *ez)
 			ENTITY_SET(enc, enc_list, cfg_encoder_set_program,
 			    "<encode>", ed->encoder);
 			if (ed->format) {
-				ENTITY_SET(enc, enc_list, cfg_encoder_set_name,
-				    "<format> (encoder)", ed->format);
-				ENTITY_SET(enc, enc_list, cfg_encoder_set_format_str,
-				    "<format> (encoder)", ed->format);
+				if (0 == strcasecmp(ed->format, "vorbis") ||
+				    0 == strcasecmp(ed->format, "theora")) {
+					ENTITY_SET(enc, enc_list,
+					    cfg_encoder_set_name,
+					    "<format> (encoder)",
+					    "Ogg");
+					ENTITY_SET(enc, enc_list,
+					    cfg_encoder_set_format_str,
+					    "<format> (encoder)",
+					    "Ogg");
+				} else {
+					ENTITY_SET(enc, enc_list,
+					    cfg_encoder_set_name,
+					    "<format> (encoder)",
+					    ed->format);
+					ENTITY_SET(enc, enc_list,
+					    cfg_encoder_set_format_str,
+					    "<format> (encoder)",
+					    ed->format);
+				}
 			}
 			if (0 > cfg_encoder_validate(enc, &err_str)) {
 				log_warning("%s: %s: %s", v0_cfgfile,
@@ -313,16 +341,33 @@ _parse_ezconfig0(EZCONFIG *ez)
 		if (ed->decoder) {
 			cfg_decoder_t	dec = NULL;
 
-			if (ed->format)
-				dec = cfg_decoder_list_find(dec_list, ed->format);
+			if (ed->format) {
+				if (0 == strcasecmp(ed->format, "vorbis") ||
+				    0 == strcasecmp(ed->format, "theora"))
+					dec = cfg_decoder_list_find(dec_list,
+					    "Ogg");
+				else
+					dec = cfg_decoder_list_find(dec_list,
+					    ed->format);
+			}
 			if (NULL == dec)
 				dec = cfg_decoder_list_get(dec_list, CFG_DEFAULT);
 
 			ENTITY_SET(dec, dec_list, cfg_decoder_set_program,
 			    "<decode>", ed->decoder);
-			if (ed->format)
-				ENTITY_SET(dec, dec_list, cfg_decoder_set_name,
-				    "<format> (decoder)", ed->format);
+			if (ed->format) {
+				if (0 == strcasecmp(ed->format, "vorbis") ||
+				    0 == strcasecmp(ed->format, "theora"))
+					ENTITY_SET(dec, dec_list,
+					    cfg_decoder_set_name,
+					    "<format> (decoder)",
+					    "Ogg");
+				else
+					ENTITY_SET(dec, dec_list,
+					    cfg_decoder_set_name,
+					    "<format> (decoder)",
+					    ed->format);
+			}
 			if (ed->match)
 				ENTITY_SET(dec, dec_list, cfg_decoder_add_match,
 				    "<match>", ed->match);
diff --git a/src/stream.c b/src/stream.c
index a1d63e4..7b01698 100644
--- a/src/stream.c
+++ b/src/stream.c
@@ -216,8 +216,7 @@ _stream_cfg_stream(struct stream *s, cfg_stream_t cfg_stream)
 		return (-1);
 	}
 	switch (cfg_stream_get_format(cfg_stream)) {
-	case CFG_STREAM_VORBIS:
-	case CFG_STREAM_THEORA:
+	case CFG_STREAM_OGG:
 		if (SHOUTERR_SUCCESS !=
 		    shout_set_format(s->shout, SHOUT_FORMAT_OGG)) {
 			log_error("stream: %s: format_ogg: %s",
@@ -233,6 +232,24 @@ _stream_cfg_stream(struct stream *s, cfg_stream_t cfg_stream)
 			return (-1);
 		}
 		break;
+	case CFG_STREAM_WEBM:
+		if (SHOUTERR_SUCCESS !=
+		    shout_set_format(s->shout, SHOUT_FORMAT_WEBM)) {
+			log_error("stream: %s: format_mp3: %s",
+			    s->name, shout_get_error(s->shout));
+			return (-1);
+		}
+		break;
+#ifdef SHOUT_FORMAT_MATROSKA
+	case CFG_STREAM_MATROSKA:
+		if (SHOUTERR_SUCCESS !=
+		    shout_set_format(s->shout, SHOUT_FORMAT_MATROSKA)) {
+			log_error("stream: %s: format_mp3: %s",
+			    s->name, shout_get_error(s->shout));
+			return (-1);
+		}
+		break;
+#endif /* SHOUT_FORMAT_MATROSKA */
 	default:
 		log_error("stream: %s: format: unsupported: %s",
 		    s->name, cfg_stream_get_format_str(cfg_stream));
diff --git a/tests/check_cfg_encoder.c b/tests/check_cfg_encoder.c
index 692d9e6..dc4be25 100644
--- a/tests/check_cfg_encoder.c
+++ b/tests/check_cfg_encoder.c
@@ -77,12 +77,14 @@ START_TEST(test_encoder_set_format_str)
 	ck_assert_str_eq(errstr, "unsupported stream format");
 
 	ck_assert_int_eq(cfg_encoder_set_format_str(enc, encoders,
-	    CFG_SFMT_VORBIS, NULL), 0);
+	    CFG_SFMT_OGG, NULL), 0);
 	ck_assert_int_eq(cfg_encoder_set_format_str(enc, encoders,
 	    CFG_SFMT_MP3, NULL), 0);
 	ck_assert_int_eq(cfg_encoder_set_format_str(enc, encoders,
-	    CFG_SFMT_THEORA, NULL), 0);
-	ck_assert_uint_eq(cfg_encoder_get_format(enc), CFG_STREAM_THEORA);
+	    CFG_SFMT_MP3, NULL), 0);
+	ck_assert_int_eq(cfg_encoder_set_format_str(enc, encoders,
+	    CFG_SFMT_MATROSKA, NULL), 0);
+	ck_assert_uint_eq(cfg_encoder_get_format(enc), CFG_STREAM_MATROSKA);
 }
 END_TEST
 
@@ -101,7 +103,7 @@ START_TEST(test_encoder_validate)
 	ck_assert_int_ne(cfg_encoder_validate(enc, &errstr), 0);
 	ck_assert_str_eq(errstr, "format not set");
 
-	ck_assert_int_eq(cfg_encoder_set_format(enc, CFG_STREAM_VORBIS), 0);
+	ck_assert_int_eq(cfg_encoder_set_format(enc, CFG_STREAM_OGG), 0);
 
 	ck_assert_int_ne(cfg_encoder_validate(enc, &errstr), 0);
 	ck_assert_str_eq(errstr, "program not set");
diff --git a/tests/check_cfg_stream.c b/tests/check_cfg_stream.c
index c41911a..ea2ddeb 100644
--- a/tests/check_cfg_stream.c
+++ b/tests/check_cfg_stream.c
@@ -47,24 +47,28 @@ START_TEST(test_stream_str2fmt)
 {
 	enum cfg_stream_format	fmt;
 
-	ck_assert_int_eq(cfg_stream_str2fmt(CFG_SFMT_VORBIS, &fmt), 0);
-	ck_assert_int_eq(fmt, CFG_STREAM_VORBIS);
+	ck_assert_int_eq(cfg_stream_str2fmt(CFG_SFMT_OGG, &fmt), 0);
+	ck_assert_int_eq(fmt, CFG_STREAM_OGG);
 	ck_assert_int_eq(cfg_stream_str2fmt(CFG_SFMT_MP3, &fmt), 0);
 	ck_assert_int_eq(fmt, CFG_STREAM_MP3);
-	ck_assert_int_eq(cfg_stream_str2fmt(CFG_SFMT_THEORA, &fmt), 0);
-	ck_assert_int_eq(fmt, CFG_STREAM_THEORA);
+	ck_assert_int_eq(cfg_stream_str2fmt(CFG_SFMT_WEBM, &fmt), 0);
+	ck_assert_int_eq(fmt, CFG_STREAM_WEBM);
+	ck_assert_int_eq(cfg_stream_str2fmt(CFG_SFMT_MATROSKA, &fmt), 0);
+	ck_assert_int_eq(fmt, CFG_STREAM_MATROSKA);
 	ck_assert_int_eq(cfg_stream_str2fmt("<something else>", &fmt), -1);
 }
 END_TEST
 
 START_TEST(test_stream_fmt2str)
 {
-	ck_assert_str_eq(cfg_stream_fmt2str(CFG_STREAM_VORBIS),
-	    CFG_SFMT_VORBIS);
+	ck_assert_str_eq(cfg_stream_fmt2str(CFG_STREAM_OGG),
+	    CFG_SFMT_OGG);
 	ck_assert_str_eq(cfg_stream_fmt2str(CFG_STREAM_MP3),
 	    CFG_SFMT_MP3);
-	ck_assert_str_eq(cfg_stream_fmt2str(CFG_STREAM_THEORA),
-	    CFG_SFMT_THEORA);
+	ck_assert_str_eq(cfg_stream_fmt2str(CFG_STREAM_WEBM),
+	    CFG_SFMT_WEBM);
+	ck_assert_str_eq(cfg_stream_fmt2str(CFG_STREAM_MATROSKA),
+	    CFG_SFMT_MATROSKA);
 	ck_assert_ptr_eq(cfg_stream_fmt2str(CFG_STREAM_INVALID), NULL);
 }
 END_TEST
@@ -116,11 +120,11 @@ START_TEST(test_stream_format)
 	    "<something else>", &errstr2), -1);
 	ck_assert_str_eq(errstr2, "unsupported stream format");
 
-	ck_assert_int_eq(cfg_stream_set_format(str, streams, CFG_SFMT_VORBIS,
+	ck_assert_int_eq(cfg_stream_set_format(str, streams, CFG_SFMT_OGG,
 	    NULL), 0);
-	ck_assert_int_eq(cfg_stream_get_format(str), CFG_STREAM_VORBIS);
+	ck_assert_int_eq(cfg_stream_get_format(str), CFG_STREAM_OGG);
 	ck_assert_str_eq(cfg_stream_get_format_str(str),
-	    cfg_stream_fmt2str(CFG_STREAM_VORBIS));
+	    cfg_stream_fmt2str(CFG_STREAM_OGG));
 }
 END_TEST
 
@@ -197,7 +201,7 @@ START_TEST(test_stream_validate)
 	ck_assert_int_ne(cfg_stream_validate(str, &errstr), 0);
 	ck_assert_ptr_ne(errstr, NULL);
 	ck_assert_str_eq(errstr, "format missing or unsupported");
-	ck_assert_int_eq(cfg_stream_set_format(str, streams, CFG_SFMT_VORBIS,
+	ck_assert_int_eq(cfg_stream_set_format(str, streams, CFG_SFMT_OGG,
 	    NULL), 0);
 
 	ck_assert_int_eq(cfg_stream_validate(str, NULL), 0);