david@web-1:~$ grep -l 'mkv' recipes/* archive/*
| DATE | FILE | TITLE |
|---|---|---|
| 2014-11-04 | adding-chapters-to-videos-using-mkv-containers ✓ | Adding Chapters to Videos Using MKV Containers |
| 2009-12-15 | extract-audio-from-video-files-to-wav-using-ffmpeg | Extract Audio from Video Files to WAV using FFmpeg |
| 2009-09-26 | add-stereo-audio-tracks-to-mkv-files | Add Stereo Audio Tracks to MKV Files |
| 2009-04-09 | convert-mkv-to-xvid-with-mencoder | Convert MKV to Xvid with Mencoder |