What is the difference between CBR and VBR?

[Akul]

Hello to all, Can you tell me what is the difference between a movie encoded in CBR and VBR encoded movie for the audio?
Thank you in advance for your answers to

[Siddharthr]

CBR: Constant Bit Rate compression ratio of the video is constant throughout the length of the film
VBR: Variable Bit Rate compression rate varies over the length of the film to be lower on the detailed parts (with a field of flowers for example to keep the details) and higher on cetain images simple.

[dr.nil]

For video, I often have problems with encodings in variable level synchronization on some players (often low-end).
For maximum compatibility, I prefer the CBR.

[Shaji]

1, the VBR for video is not a problem but the audio is often the cause of désynchros on some players (plus I'm not sure that the AVI supports VBR audio if c It is the container that you intended to use)