That was a part of this change: - Made adjustments to the sizing algorithm in order to prevent oversizing on oddly formatted DVDs that have huge numbers of very small segments. (v1.20.0) Yes, it means the segment is less than 60 frames total -- and it will not be compressed at all. Several encoders/versions have had problems encoding very small segments and would crash when the bitrates were too limited. So previous versions of DVD-RB would increase the bitrate to prevent that from happening. It just so happens that sometimes the bitrate increase would be enough that you were actually making the output larger than the original... which, of course, is silly. If there were a lot of them -- it would cause oversizing. So in those cases DVD-RB will simply keep it intact now.