Why VCD or DVD

VCD stands for ‘Video Compact Disc’ and basically it is a CD that contains moving pictures and sound. If you’re familiar with regular audio/music CDs, then you will know what a VCD looks like. A VCD has the capacity to hold up to 74/80 minutes on 650MB/700MB CDs respectively of full-motion video along with quality stereo sound. VCDs use a compression standard called MPEG to store the video and audio. A VCD can be played on almost all standalone DVD Players and of course on all computers with a DVD-ROM or CD-ROM drive with the help of a software based decoder / player. It is also possible to use menus and chapters, similiar to DVDs, on a VCD and also simple photo album/slide shows with background audio. The quality of a very good VCD is about the same as a VHS tape based movie but VCD is usually a bit more blurry.

I would like to know why because you can do all the above things state without creating VCD or DVD

Movies can be played without creating VCD or DVD, just put MPEG1 or MPEG2 individual files on a CD or DVD and use your media player.

I really don’t understand your question, especially the first sentence…

I would like to know why you need to create VCD or DVD because you can do all the above things stated without creating VCD or DVD

Movies can simply be played without creating VCD or DVD, just put MPEG1 or MPEG2 individual files on a CD or DVD and use your media player.

You create a vcd or dvd so that it can play in a standalone dvd player (not all will play mpeg recorded as data though some will). The vcd/dvd formats also allow for menus and such. Vcd and dvd are basically just mpeg files with some extra files for formating. Also, the formating allows auto play functions. An example would be a movie that is in three diffrent files. Dvd can play all three files without interuption, where mpeg files burned as data cannot. Sure you could make it one large file, but keep in mind that fat based operating systems cannot read files larger than 4 gig.

In other words, if you are going to play the files on a win xp system only, then it doesn’t really make that much of a diffrence. If you want it to play on all kinds of computers and various stand alone players and portables, you need the formated structure.

Could not explain it better.

SOME standalones are able to play PLAIN mpeg1 mpeg2 or even mpeg4 files without authoring, but only SOME.