A VCD is simply a recordable compact disc (CD-R) that contains video and audio - moving pictures and sound. VCD uses the MPEG-1 standard to store video and audio in a high density form. More common DVD recordings utilize a different standard, MPEG-2. Be aware that some DVD players that can play VCDs may not have the ability to read CD-R discs. Check VideoHelp.com to see if your model of DVD player is compatible.
While at Videohelp.com take a look the authoring part: