if you are using windoze, i think you have to launch media
player.. then go to the top, click on "play" and choose the "CD,
VCD, DVD" option..
VLC is a program which you can download to play all kinds of
media files... just be sure to choose the correct one for your
operating system...
i use VLC for Mac.. it plays everything, including VCDs and
DVDs... but mostly for avi, mkv, mov, mp4 and other type of movie
files...