Let's say that I want to back up a dvd on 1 cd. For a 100 mins movie, I'll probably use a bitrate of about 100-130kbps.

For 100 mins, the additionnal overhead of multiplexing vbr mp3 into avi will be about 10-13kbps.
Here is the question:

what do you think will be better (or least worst):
* --alt-preset 110
* --alt-preset cbr 123 ?

Hrmm.. from those 2 presets it'd be kind of hard to say which should clearly be better. If you used abr at 123 to match the cbr, then it should definitely be better. I'm not exactly sure at which point the advantage of abr is lost as you decrease the bitrate in comparison with a similar cbr setting.

If it were me, I'd probably go for the higher bitrate and go with CBR.

the overhead is typical 6 mb

for 2 hours movies that is this is 6990,5066666666666666666666666667 bits per second

how did you calculate it up to 13kbits ?

my overhead is 6 megs on a 2h movies

that is 3 MB per hour
thats is (3x1024)/60 = 51,2 Kbyts per minutes
that sis (51,2/60 = 0,853333 Kbyts per secund
which are 0,85333*8 = 6,82666 Kbits per sec
which are (6,82666*1024)/1000 = 6,990506666 kbits


K= kilo (1024)
k = kilo (1000)

and a movies does flex much moer than musiv so is has better uses of abr/vbr tecnologies

i uses --alt-preset 128 (or what ever valeus gives me an average bitrate at aroudn 128 +/- 1 kbits)

Just a suggestion. If you use Vorbis you encode your audio and mux the video into an Ogg stream, not only do you get better quality for the bitrate and better VBR handling in an Ogg stream, but the muxing overhead is much lower. ~2-3mb for a 2 hour movie.

I'd have to agree with tanget here. I think that for movie encoding, vorbis is certainly the way to go for the audio aspects of it. The quality, especially at these bitrates, is much better than that of mp3. Since there really shouldn't be much of an issue with compatibility either (in choosing vorbis over mp3 in a dvd rip that is, since hardware playback or the like isn't a consideration currently), I don't really see a reason not to use vorbis.

In fact I'm open to any suggestion, as the only purpose for me is testing.

I already own the dvd movie, but I'd like to know how it will look like/sound on 1 cd.

i just did a rip of akira special edition
its jsut e tit over 2hours

The overhead was around 3mb


the reason i don go to org is that i haven found the tools yet to mux an avi video stream and ogg sound file into a vorbis container try this...any links please :-)


or is it vorbis sound into an org container ??? :-)

head over to www.doom9.org
there are some cool guides on how to mux the audio and a new tool was announced yesterday in the news that allows you to split the final output into various segments which was missing before.

Hope that helps

Kristian TIppins

It's Vorbis sound an an Ogg container.
Currently the tool to do muxing is GraphEdit, and you could have looked harder. It's been discussed quite a few times before, and on other video places as well. Anyway, this is a pretty good guide: http://www.everwicked.com/modules.php?op=m...tion&file=index

In a post I've read from ChristianHJW he said he used 600Mb for video and 100Mb for audio.

I followed this advice and I think it's very useful, I use to do 1CD rips with a max lenght of 1:40 min no more.

Another advice it's to think that 10-20Mb doesn't have an effect in the video quality over 550-600Mb but if you use them over an audio stream you will gain in quality.

Anyone think that the difference between 112kbps-128kbps in Mb could improve the quality of your video stream, if you use those Mb for the video? But the quality of the audio will be really improved. I you don't believe me do a 600 and 620Mb of video or 590-610 for example and see what I'm trying to say.


I never use less than 128kbps average for a movie and use vorbis for the job. Excelents results until now.
Just my 2 cents

Few questions:

1) What is the best value to use for -q on those 1CD rips in your opinion? What about 4.99, which is around vbr 128 right? How is this compare to mp3 vbr 160? Does the program Headchac3 support q 5 lossless channel coupling?

I know this is kind of vague, cause we all know different movies compress differently, and they also depend on what type of materials you are trying to encode. Still I would like to get a general idea.


2) Around what range is the bitrate of an ogg file compare to alt-preset standard?

The reason this is asked, is according to a dated (back when ogg hits beta4) ff123's Listening Test using "Duel of the Fates" From Star Wars Episode I; according to him, "it produces slight flutter; perhaps slightly worse than Lame with -- nspsytune, and wma was best to the ears". Is there a newer listening test around?

3) How is channel separations treated in ogg? I didn't see a joint or stereo option in oggenc. Do they handle surround better than mp3? According to ogg site, these are the stero handling option, where can we enable that in the oggenc?

EDIT: Reading the ogg page some more, I can assume that since ogg uses vector quantization which means that it encodes *joint* approximations to groups of numbers, so joint is always applied, correct?

dual stereo
uncoupled stereo encoding
lossless stereo
lossless stereo coupling; produces exactly equivalent output to dual stereo
eight phase stereo
a mixed mode combining lossless stereo for frequencies to approximately 4 kHz (and all strong pure tones) and eight phase stereo above
aggressive eight phase stereo
a mixed mode combining lossless stereo for frequencies to approximately 2 kHz (and for all strong pure tones) and eight phase stereo above
eight phase/point stero
A mixed mode combining lossless stereo for bass, eight phase stereo for noisy content and lossless stereo for tones to approximately 4kHz and point stereo above 4kHz.
aggressive eight phase/point stero
A mixed mode combining lossless stereo for bass, eight phase stereo to approximately 2kHz and point stereo above 2kHz.
point stereo
A mixed mode combining lossless stereo to approximately 4kHz and point stereo above 4kHz.
aggressive point stereo
A mixed mode combining lossless stereo to approximately 1-2kHz and point stereo above.

Let's leave 5.1 streams ogg out for now, since directshow isn't supported.

I use -q 0, it's really up to your preference. Select a bitrate you like and use the appropriate -q value. If you're looking for ~128, 4.99 does well and shoudl be comparable to ABR 160. -q 5 defaults lossless channel coupling. I think the latest version of Headac3e or Besweet (not sure which) allows you to turn channel coupling on or off for any q value.

There's no way to really tell yet.


That's why it's hard to say. One codec may do better on one clip, the other may do better on another clip, depending on the characteristics of the clip.


That document is out of date. If I remember Monty correctly (search around the forum, you might find the post), lossless coupling is used from 5 onwards, phase stereo modes are not used any more, point stereo is used all the way with varying degrees from 0-4.99 depending on the Q level specified.


Encoding support has been out since the beginning, playback support has just been supported in the latest DS filter.

it semm that every time i try to seek in my divx+vorbis>.ogm it crashes

if i use divx+mp3>.ogm it eats up all my memmory and then closes


and i can get the subtitels thingy to show....

I'm still not impressed by ogg or vobis

*praying or the aac playback filter to come soon*

That's weird, I never had this problem yet.
You are using the latest OggDS filter, I hope?
Did you follow the guide on Everwicked?