In Vdub i encode my mpeg2 & ts vids by xvid mpeg4 codec , but there is a problem :
- when i nstalled the codec the first time i found 2 xvid codecs in compression menu ... the 1st differs from the other in FOURCC code ... one of them is " xvid " & the other is " yv12" ... i preferred the 2nd because it gives me higer quality & lower size , but the problem is when i installed the xvid again " after system changing " i found the 1st codec only.

- how can i get the 2nd "yv12" ? please illustrate the difference.