How to make screencasts with FFmpeg

FFmpeg is able to use audio and video streams from many different sources. In order to record a screencast, you can use the x11grab input module for recording an X screen and the alsa input module for audio recording.

How to transcode a directory of audio files to AAC with FFmpeg

I recently started to backup my CDs as lossless flac files on my home server. The problem is, my mobile phone cannot play back flac files, so I wrote a little bash script that transcodes a directory of audio files to high quality variable bitrate AAC files that I can play back on my mobile phone.