Converting from AVI to DVD

[spawnerlista]

There is a way to converting DivX or Xvid movies to DVD format (MPEG-2) but using the MPEG-2 bitrate at the same levels of the AVI? I don´t wanna use MPEG-2 high bitrates when the AVI use low. I wanna try to fit 2 or 3 movies on a DVD format, including subtitles.

[coona]

I´m not sure what did you mean by "I don´t wanna use MPEG-2 high bitrates when the AVI use low". You can choose bitrate as low as you want. Higher bitrate is useless anyway when you deal with low bitrate sources (as DivX and Xvid are). There (http://www.doom9.org/mpg/avi2dvdr.htm) is a link to the guide for converting AVI to DVD±R.

[spawnerlista]

If a frame on DivX was encoded using 900 on bitrate, I don´t wanna use 2000 on MPEG-2, I wanna use same bitrate quality to have a file with a small size.

[coona]

Yes, and that is the point. It depends only on you what bitrate you will choose. So there are two options - you´ll encode your MPEG at the same bitrate as Divx has or you´ll encode from another source. But I´m afraid about final quality anyway. You know bitrate about 1000 is in my opinion too low to get watchable movie on TV - pc players use some post procesing filters to obtain better picture...

[spawnerlista]

I have DivX or XviD movies here. All encoded. I just wanna convert then to a MPEG-2 file but using the same bitrate quality that the DivX and XviD have choosed on the MPEG-2. I don´t wanna encode my movie at a high bitrate on MPEG-2 cause I need a small file.

[coona]

I do understand you :). I´m only afraid about final quality. It is much better to encode from better source then from worse source with the same final bitrate. Could you please post your result when you finish it? I´m curious about the quality conversion from DivX to MPEG2.

[spawnerlista]

No problem. I know that the quality was not the same if the source was a DVD, but I just wanna try. My question is if there is a software that can check each frame on my DivX/XviD and use a compatibilty bitrate quality on MPEG-2 to do this.

[coona]

I guess that each encoder uses different algorithm to calculate bitrate for each frame. That is why there is so many encoders :). I believe that e.g. CCE knows what it does and you have to trust to this encoder. I´m sure you get different bitrate for each frame with the same average bitrate of your movie when you use different encoder. CCE is one of the best encoders and it will allocate achievable bitrate optimal to each frame.

So the answer to your question is: there is no encoder that will guarantee exatly the same bitrate for each frame with given total average bitrate as original source has.

[spawnerlista]

And there is a software that I can see all bitrate levels of my movie? The low and the hight bitrate level on DivX/XviD movies? Something like Dr.DivX have.

[coona]

BitRate Viewer?

[spawnerlista]

I don´t know if he is not compatible with DivX. I have tried with 2 movies and got a error message. Any other soft that can do this?

[spawnerlista]

Error message:
INVALID FLOATING POINT OPERATION

[DnGermany]

Use a bitrate calculator to find out the rate needed for how many movies you want on the dvd(2 movies would be 4.37GB divided by 2 which is 2.17GB per movie. So now run that through the bitrate calculator to get your rate per movie. Normally i don't put more than two movies on the disk, because the quality sucks, but that's your personal choice.

[pepipocpoc]

hey, hello there

I know I'm coming a bit lately, but I really would be interested in your tests and results, since I try to do quite the same, but my biggest prob is that I'm absolute newbie with avi -I thought till most recently I could demux video from avi, just like a mpg... Could you let me (us) know?

[jimmy basushi]

cause of the way mpeg4 codecs like xvid/divx compress it would be impossible to know what it atucally uses on scenes unless you kept your .stats files from when you created the .avi files.

why would you need to demux video from avi? everything can open from it.

[pepipocpoc]

well, I have some AVIs I would have liked to read on my standalone.