Difference "MPEG4" <-> "MPEG4 VKI" ?

[KillaByte]

Hi!

Sorry if this is the wrong forum - I didn't know where to put that.

I want to encode my movies with MPEG4v2.

Now I got two versions of the MPEG4 codec:
MPEG4 (original?)
and MPEG4 VKI

What's the difference between this two (and which one should I use)?

[Kyo]

The MPEG4 VKI is a hack of the m$ with a scene change detect, if you use Flask this could be better than mpeg4 plain, but if you are nandub user(:p) the better results are with mpeg4 plain.

[KillaByte]

Thanks