somebody posts an mpg or mpeg file that they say is an SVCD or Super
Video CD then you'll need this codec if you'd like to watch it on your
computer without burning it to a CD. This is the MPG2 codec. After
installing this all programs like Winamp or Media Player will be able
to properly play these videos.
NTSC resolution: 480x480
Normal SVCD's contain 35-40 minutes of footage.
You can download this codec HERE