vlc_questions_orig

1. What is vlc ?
2. How to open the file in vlc ?
3. How to use track slider in vlc ?
4. How to control volume in vlc ?
5. How to enable subtitles ?
6. How to play CD, DVD image files in vlc ?
7. How to control the aspect ratio of video ?
8. How to crop video in vlc ?
9. How to play multiple instances of VLC ?
10. How to change playback speed ?
11. How can I extract audio from file ?
12. How to shut down computer when all playing videos are over ?
13. How to make VLC the default player ?
14. How to quit VLC ?
15. How to change video and audio effects ?