SECAM or Systeme Couleur Avec Memoire is a system for color television
used in countries that do not use the NTSC or PAL system such as
France and Russia. SECAM shows 625 horizontal scan lines at a refresh
rate of 25 frames per second.
"On a PAL or SECAM system, the electron beam passes over the entire
screen 50 times a second, which means the television presents a
complete picture 25 times a second. This is pretty close to 24 frames
per second, so if you make a direct conversion showing one complete
film frame in every full video frame, the movie plays pretty well,
just a tiny bit faster. The main thing you might notice is that all
the sound has a slightly higher pitch."
(Source: How Video Formatting Works - Frame Rate Conversion
HowStuffWorks, Inc., Copyright 1998 - 2004)
You can find more information on television video formats from this link:
How Video Formatting Works
Here are definitions of SECAM as an added information:
Definitions of SECAM on the Web
You can find more related info from the last link beleow.
Searched for SECAM in Google and HowStuffWorks.
"what is secam"
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