DVD player, commonly known as DVD player, is a device for playing digital discs. Most of the usage methods need to be connected to the TV. In addition, there are products with LCD display.
basic functions
the basic functions of a DVD player are as follows:
reading DVD-Video discs (UDF version 2 format).
decrypt the content processed by CSS or Macrovision at will.
waveform of p>Macrovision anti-copy signal
decode MPEG-2 video stream, with the highest peak rate of 1Mbit/s and the continuous rate of 8mbit/s.
decode sound format encoding MP2, PCM or AC-3, and output it through stereo connector optical fiber or electronic digital connector.
output video signals, in which analog signals (PAL, SECAM or NTSC formats) use color video signal connectors, and digital signals use digital video interface connectors.
most DVD players can also play audio CDs (cdda, MP3, etc.) and vcds, including a home theater decoder such as Dolby Digital and DTS；; Some new products also support DivX, a popular video compression format on the internet.
1. CD means only songs without images, and each disc contains more than 1 songs.
2. VCD refers to a video disc with images, generally about 7MB, which can only contain more than 1 songs, or the playing time is about 45 minutes. (It only refers to the contents inside, which is the same as the so-called CD medium. )
3. DVD can store large-capacity data or videos, usually at 4.7GB, or even larger. Requires DVD drive support.