diff --git a/README.md b/README.md
index 87248b5..195d0a2 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,10 @@ To the extent possible under law, the author has waived all copyright and relate
 ### Audio
 - [MPEG-1 Audio Layer III .mp3](mp3.mp3)
 - [Waveform Audio File Format .wav](wav.wav)
+- [FLAC .ogg](flac.ogg)
+- [Opus .ogg](opus.ogg)
+- [Speex .ogg](speex.ogg)
+- [Vorbis .ogg](vorbis.ogg)
 
 ### Documents
 - [Compiled HTML help .chm](compiledhtml.chm)
diff --git a/flac.ogg b/flac.ogg
new file mode 100644
index 0000000..e70c037
Binary files /dev/null and b/flac.ogg differ
diff --git a/opus.ogg b/opus.ogg
new file mode 100644
index 0000000..bee7365
Binary files /dev/null and b/opus.ogg differ
diff --git a/speex.ogg b/speex.ogg
new file mode 100644
index 0000000..a16f6f0
Binary files /dev/null and b/speex.ogg differ
diff --git a/vorbis.ogg b/vorbis.ogg
new file mode 100644
index 0000000..82108aa
Binary files /dev/null and b/vorbis.ogg differ