I am re-codeing a MPG2 with TMPGenc. The original VBV buffer size of the clip is 112. After running the clip through TMPGenc, the VBV buffer size is reduced to 56 !?? I did not change the setting, in fact the setting is still locked at 112.

Why would this happen ???

John

Ps. All settings in Advanced are default, and I am using CBR.