You want to record what's happening on your Ubuntu desktop on a film i.e. filming what you are doing on your computer :follow the guide.
You've got a Sony Walkman NWZ-A844 (an MP3 reader) and you want to use it to watch videos. Here is how to convert and transfer your videos from your Ubuntu PC or on Windows.
If you are wondering why you get a strange message when using
ffmpeg: here is the answer.
You want to download streaming videos from YouTube, Daily Motion and others ... here are the solutions !
Videoprojector are cheaper and the "new" pico projectors (i.e. mini) are affordable and interesting but which one to choose .