Why do we not cover some of the experiences in DivX creation and DVD-to-DivX conversion, for example, there is one topic about DivX that I had never seen anyone mentions. If you convert like more than 200 DVDs into mpeg4 ( DivX ), you will know what I am talking about. Let me hear from you first. But I will start first by sharing my experiences: 1. Use Ecuador's AVI bitrate Calculater to calculate bitrate. 2. Use DoItFast4U to prepare and encode extras on your DVD: you can encode the whole DVD into DivX. VirtualDub, lame, AC3Dec, and a list of other software needs to be used in this case. 3. Split the movie before encoding: use Ecuador's bitrate calculator to calculate bitrate for one CD, for example, 680mb, 192kbps, at bitrate of 1500kbps for video, we should have a length of 0:55:53. Encoding this way we do not have to split one large file after encoding. 4. There is always a 20-40 milisecond delay after the DivX.avi being encoded. This is depends on how high a bitrate we choose. A 20 ms delay should be applied to a 720x416 ( 16x9 ) movie while up to 40 ms delay can be applied to a 640x480 ( 4x3 ) piece of Divx.avi of bitrate of 1600 kbps or higher. This is to compensate for the slowness of the whole computer system and video card performances. 5. Last but not least, know how to resize and crop the 16x9 movie; even the 4x3 movie needs resize and crop too, especially if these pieces are from within the Extras part of the DVD. Use FlaskMpeg to find out how much to resize and use VirtualDub to find out how to crop, then use AviSynth AVS resize and crop features as well as IVTC or SmoothDeinterlacer features, and then use fast-Recompress in VirtualDub.