File size of final DVD- need manual bitrate setting..

[JJ]

Nice effort. I suspect that DivXtoDVD is actually having very efficient encoder, it is able to produce movie with very low average bitrate, still keeping quality high. Other programs fail on this, maybe because they are not properly checking that file for changes (movement!), and when changes do occur, they compensate to it too slowly resulting in bad quality and jumping movement. You should be able to produce as good results with as low bitrate as DivXtoDVD when you set encoder to do double-pass VBR and check for movement "very high" or what ever setting that is. But to do it as fast as DivXtoDVD ... Just have to congratulate VSO for this engine, it is doing miracles. Minor hick-ups are nothing serious.

[bigly]

JJ, again I think you are correct. I continued my testing with some other encoders and found that D.I.K.O. using the FreeEnc (, not CCE) with 1-pass almost manages comparible bit-rate optimisations to DivXToDVD. D.I.K.O. file sizes are about 135% those of DivXToDVD whereas ALL the other encoders I have tried (in 1-pass mode) produce files between 200%[Mainconcept]-300+%[WinAVI] those of DivXToDVD! In all cases I used as close as 'like for like' testing as possible for rate-control. E.G. Using a source with short duration so as not to force a compressed average bit-rate thereby allowing the encoder(s) to provide their best quality/bit-rate balance without minimum bit-rate padding (where possible). Again, the quality of the D.I.K.O. output is fantastic so it shows that there are vast differences between encoding engines and that optimisations are certainly possible. [IMHO, the 300% WinAVI file wasn't even as good quality as the DivXToDVD one!] [I must also comment that the D.I.K.O. frame rate compensations (NTSC>PAL) are fluidly smooth in comparison to DivXToDVD which is a major benefit but it goes without saying that the entire encode took nearly twice as long.] Like you say, with 2-pass some encoders may be able to match DivXToDVD bit-rate optimisations (and hence file sizes) but they would take at least 4x as long to do it...I STILL find it hard to believe that much optimisation is possible without some other 'trick' but hey I LOVE IT!... ....You know, the fact that you can get 2 average movies on a DVD5 with DivXToDVD almost makes the, (DVD movie >> DivX) *2 >> DivXToDVD >> DVD5 process better than the, DVD Film(*1) >> Transcode (CloneDVD etc.) >> DVD5 process!!!

[lapinou]

guys, I don't have too much time to read your very technical posts. just wanted to let you know than divxtodvd 0.4.8 set a minimal bitrate now. http://www.vso-software.fr/download_product_direct.php?product=divxtodvd

[CDR-Zone.COM]