Nearly all DVD players will play VCDs.It's a lot more common in Asia and is pretty much the same thing so far as the DVD player is concerned.
Most DVD players will play CDs of all type depending on the content. CD-Rs can normally be handled without a problem. There are restrictions on the content that the DVD player can handle. It varies from one model to another but many can play audio content (CD format or MP3), pictures and some video formats. The only way to confirm the capabilities is to refer to the manual for each model. Some older DVD players will not play CD-Rs that use phthalocyanine (light green) dye. They will however play discs that use cyanine (teal) or azo (blue) dyes. If in doubt, use Taiyo Yuden discs which always use cyanine (teal) dye.
Most Newer models of DVD players can play MP3's.
yesyes it does because most DVD players will not play xvid as i have tried to on multiple DVD players
DVD audio is a digital format for delivering high quality sound to DVD's but not all DVD's players will play it. You have to check the box to see if it has it.
No, many just play a DVD.
I assume you mean "before" rather than "be for"; they used video players to play pre-recorded videos. There was also an attempt to market video CDs which were of similar quality to videos, but soon after VCDs were launched DVDs became more widespread.
Yes
Yes they will
Yes, BluRay DVD players also play non Blu-Ray DVDs with no problem.
Blu-Ray discs DO NOT play on DVD players. They will only play on Blu-Ray players
Blu-Ray players will play ALL DVDs whether they're burned or not
DVD players cannot play Blu-Ray discs. But Blu-Ray players can play DVDs