DivX 5 with AC3

[DragonZeal]

I made 2 rips of a dvd.
One with AC3 and one with MP3.
Both file sizes are 700MB?
Is it wise to have Divx with AC3 of only 700Mb?
The AC3 file itself is already 230Mb while the MP3 file equals 95Mb.
But off course the AC3 sounds much better.
The thing is I want to store my DivX on one CD.
Should I use CD's of 100 minutes?
The size of those CD's are 878Mb.
So 878Mb minus 230Mb equals 648Mb.
This is for AC3 off course.
Then for MP3.
So 700Mb minus 95Mb eqauls 605Mb.
So I think the AC3 option is better.
Could I have any comments about this?

[Nel]

If the birate is high enough and the picture is satisfactory to you then I say go for it. In my experience with using 700MB cds, the bitrate is always too low for a hour and a half movie or longer so it goes on 2 cds otherwise it's MP3 sound for me.

I actually just did one movie, about 1:38 in length and the bitrate was 550k or something. It was blocky as hell and I even used the slowest mode for divx 5.1 which took 2 days and ended up going to waste. So I'm doing it again now in MP3. Strange because I did some star trek episodes at around 370k bitrate and they looked better than this movie did with hardly any blocks and that was with 5.05. I guess it all depends on how the content compresses.

[Tuning]

I guess it all depends on how the content compresses.
The darker the movie better it compressed.(Dark regions doesn't require bit allocation bcoz no details).
And u can re-encode ac3 into lower bitrates so that less size is utilised(256-384kbps).On recent tests conducted by members of this forum, it shows that Ogg vorbis is more suited than mp3.(above 70kbps VBR);)

[DragonZeal]

Ogg vorbis is maybe more suited than MP3 but I wanna have dolby digital.
So there is only one way for me.
There aren't any Cd's of 1.4Gb so I'll have to use 878Mb.
But if this is not a good idea please let me know.
The sooner the better.

[Tuning]

It is a good idea to use ac3 for all ur rips,but u have to re-encode ac3 ,if movies are large(>2:40 (may be -need some calculation for correct time));)

[SeeMoreDigital]

Originally posted by Tuning
It is a good idea to use ac3 for all ur rips,but u have to re-encode ac3 ,if movies are large(>2:40 (may be -need some calculation for correct time));) Yes, what we could do with are some simple applications that can convert a 6Ch AC3 audio stream into 6Ch Mp4/AAC @ 96kbps audio stream!

Any ideas? Cheers

[DragonZeal]

I'm gonna keep the AC3 because I have my DivXboX connected on a Dolby Digital Ampiflier. So it is good for me.

[SeeMoreDigital]

Originally posted by DragonZeal
I'm gonna keep the AC3 because I have my DivXboX connected on a Dolby Digital Ampiflier. So it is good for me. Yes, I know what you mean.

I guess I'm lucky as I have a digital surround sound amplifier that also gives me the option to connect a 6Ch (or even a 7Ch) analog source. So it's ideal for connecting to all manor of 6Ch ouput sound cards!

I wonder if we'll ever see DSS amps with 6Ch AAC, WMA, RMA etc decoders in them?

Cheers

[DragonZeal]

But I use the SPDIF output connected on the ampiflier.
So it is digital all the way.

[SeeMoreDigital]

Originally posted by DragonZeal
But I use the SPDIF output connected on the ampiflier.
So it is digital all the way. So do I for 2Ch an 6Ch Dolby Digital/DTS DVD-V and DVD-A sources. And 2Ch CD audio sources!
But, the only way you can listen to 6Ch WAV, WMA, RealMedia and AAC files is via 'analog'....... At the moment!

Cheers

[DragonZeal]

My DivXboX is a movie and DVD box.
So music doesn't interest me on that pc.
For that I use my main PC.

[SeeMoreDigital]

Originally posted by DragonZeal
My DivXboX is a movie and DVD box.
So music doesn't interest me on that pc.
For that I use my main PC. Maybe so.

But it is possible to encode a movie to say WMV9 and mux a 6Ch (or 8Ch) 128kbps WMA audio stream to it. It's even possible to encode a movie to Mpeg4(DivX) and mux an 6Ch .Mp4/AAC audio stream to it!

I've done the former but not the latter. It's all about saving MB space. In much the same way we like to do with the video stream!

I wonder if the new 'Nero Digital' application will allow easy ripping of an 6Ch AC3 stream to a 6Ch Mp4/AAC stream.

Now that would be fun!

[DragonZeal]

Are there any guides for this AC3 6ch to any other format in 6Ch?
Which format is best suited then?

[SeeMoreDigital]

Originally posted by DragonZeal
Are there any guides for this AC3 6ch to any other format in 6Ch?
Which format is best suited then? There are quite a few guides available on the forum. However, some of the guides/applications are quite complicated to follow/use.

So it would be great if there were some simple applications for say, 6Ch AC3 to 6Ch WMA9 and 6Ch AC3 to 6Ch AAC!

Maybe there are now. Or maybe somebody is working on one or the other right now!

Cheers

[DragonZeal]

I have decided to not use the AC3 because the 878Mb cd's won't read that easily.
So I'm gonna need a compression method which gives me a 5.1 sound so I have to connect my soundcard analog on my 5.1 ampiflier.
Does anyone have a suggestion on what compression method I have to use?
And what is the best?
Thanks

[Tuning]

As 5.1 is considered the use of AAC/Ogg vorbis in OGM/MKV container is more suited than AVI(AVI doesn't support AAC till now).The softwares are Besweet/Ogg Machine/AAC machine,etc.They can be d/l'd in doom9's software pages.:)

[DragonZeal]

I was thinking about making two rips.
One would be a DivX with Mp3 (2ch).
Another would be a Xvid with Ogg Vorbis (6ch).
Which would be best?

[Tuning]

Both are good in different situations.Preferrebly second one is better here.:D

[DragonZeal]

Should I be able to get this on 1 cd?

[Tuning]

First create the Ogg and load in to GKnot.If bitrates and bits/pixel value are satisfactory,proceed and u will get good rip. :D

[DragonZeal]

Do you know what is a good bitrate for a divx and a good bitrate for a Xvid?

[Tuning]

That depends on movie u are encoding.If ur movie is full of action sequences and is not darker like"The matrix",use around 700kbps in both codecs otherwise 600+.:).For more options try the compressibility test as given in doom9's guides.

[DragonZeal]

I have always a bitrate above 1000 so that would be good.
I'm speaking of Divx.
I'm gonna create an ogg vorbis file and then a mp3 file.
Then I will do a Divx and add the mp3 file and then I will do a Xvid and add the ogg vorbis file.

[DragonZeal]

I'm having some problems with playing a Xvid with Ogg vorbis sound.
My program showshifter doesn't play it correctly.
So I need another option.
One option is to reduce the bitrate of the ac3.
Instead of 384kbps I converted it with AC3Machine to 224kbps.
Is this wise?
Then the size of the file is 132Mb instead of 230Mb.
That leaves 568Mb for the video.
Is this good or do you advise me to make a 2 CD rip with the orignal AC3 file?
Thanks for helping me out.

[Tuning]

if bits/pixel*frames value is enough do it.As u were saying u had higher capacity discs why don't u increase the total size and use ac3@384kbps?(all this if b/pf value is low:) )

[DragonZeal]

The higher capacity discs won't work with video on it.
So I have to use 700mb cd's.
But I'm been thinking about other options.
I'll give you the options en please tell me which is best:
1. 1 Cd Divx with Mp3
2. 1 Cd Divx with AC3 at 224kbps
3. 2 Cd Divx with AC3 at 384kbps
4. 1 DVD+R with the main movie*

*A Liteon DVD+R/+RW costs 140€.
To rent a DVD it costs 3€.
And a DVD+R disc lets say 5€.
So it would be 8€ per DVD copy.

Which would be best?

[SeeMoreDigital]

Originally posted by DragonZeal
The higher capacity discs won't work with video on it.
So I have to use 700mb cd's... Not entirely true. I have a CD burner that will recognise and write to 800MB/90min CD-R's.

As a test I purchased a 10 pack of Philips 800MB/90min CD-R's and created some 800MB DivX/avi encodes.

All the encodes burned the Philips discs perfectly.

Cheers

[DragonZeal]

My burner recognizes them but my Pioneer DVD and Liteon DVD won't read them.

[SeeMoreDigital]

Originally posted by DragonZeal
My burner recognizes them but my Pioneer DVD and Liteon DVD won't read them. I know what you mean. I bought a ten pack of cheapo 99min CD-R's from Maplin Elecronics (UK retailer) and they were total crap! Even with 700MB of data on them, my Pioneer DVD drive could hardly spin them. And with 750MB... forget it!

That's why I decided to give a 'branded' manufacturer a try. Maybe you would have more success if you did the same!

Oh, I forgot to mention. Because Nero (v5.5) was able to detect that the CD-R blank was 800MB, I did not even have configure the software's 'overburning' settings!

Just lucky I guess!

Cheers

[DragonZeal]

Ok then I'll go buy some Philips 90min. and give it a try.
I made 3 different kinds of rips now.
1. Divx with MP3 700Mb
2. Divx with AC3 1400Mb
3. Divx with AC3 224kbps 700Mb

If I'm correct I could have a
4. Divx with AC3 384kbps 800Mb

Because when I reduce the AC3 to 224kbps I get 100Mb less in filesize.
So a Divx with AC3 384kbps 800Mb would be great.

I tested the above 3 rips.
I can't seem to notice any difference in visual quality on my TV.
Not even with the 1400Mb movie.
So maybe it would be best to have the 4th option.
Do you agree?

When I look at the properties of the Divx with MP3 and the one with AC3 224kpbs is see that the data rate of the video is the same.
Is this how I can see if the quality of my Divx is good?
Are there any programs who can analyze a Divx and tell the bitrates or tell if the Divx is good?

[Tuning]

I tested the above 3 rips.I can't seem to notice any difference in visual quality on my TV.

If sound is well my opinion is to go for Divx with AC3 224kbps 700Mb.

Are there any programs who can analyze a Divx and tell the bitrates or tell if the Divx is good?

U can use GSpot to this and gives precise bitrates used for audio and video.Available in download section of doom9.org.;)

[DragonZeal]

But if I can keep the AC3 in its original by using 800Mb cd's from Philips wouldn't that be better?
So there are two options left.
1. 1 Cd Divx with AC3 384kbps
2. 1 Cd Divx with AC3 224kbps

Which one would you choose and why?

[DragonZeal]

http://users.pandora.be/6bi-olvi/Divx AC3.jpg
http://users.pandora.be/6bi-olvi/Divx AC3 224.jpg
http://users.pandora.be/6bi-olvi/Divx MP3.jpg

These are the results of my rips.

[Tuning]

The 800MB CD is urs,The DVD is urs and Ripped video is urs..........
So the decision need to be urs and not mine.The suggestions can be told from here but taking decesion is upto You.Again my suggestion is to play the audio in a mulichannel player and find which is better and make up ur decesion.One more,i could not view the links provided by u>
I may be using the 700MB discs bcoz of price factor,being 700MB cds are cheaper. :D

[DragonZeal]

The links are working now.
A 700Mb cd costs 0.75€ in Belgium and a 800Mb costs 0.90€.
So the difference in price is not big.
I'm off to work in 20 minutes.
I'm going to make a 800Mb version en then I will give you the results.

When I make 5 Cd's of 800Mb it costs in total 20€.
When I make 5 DVD-R it costs 26€.
So the choice is easily made I think.

What is the best tool for extracting the main movie from a dvd to burn it to DVD afterwards?

[Tuning]

In the two CD rip the bitrate was found to be 19xx kbps,which is enormos and u usually need not require it.My favourite bitreate is some thng in range of 650(slow,darker)to 1100 kbps(fast,bright)movies.
As u have got 937kbps when using ac3@224 kbps.I suggest u to go for it.:p

[DragonZeal]

Here is the result of the 800Mb rip.
http://users.pandora.be/6bi-olvi/Divx AC3 800Mb.jpg

[Tuning]

Even better @942kbps and .194 b/pf.Seems to be a good rip.Bye;)

[SeeMoreDigital]

Originally posted by DragonZeal
Here is the result of the 800Mb rip.
http://users.pandora.be/6bi-olvi/Divx AC3 800Mb.jpg Looking good! Let's hope you don't have any problems burning the file onto a 90min/800MB CD-R.

Just a note. I read a report (I think was on this forum), that the new version of Nero (v6.0.0.15) has some problems burning large files. There's supposed to be a patch somewhere!

I have not come across this problem myself as I use v5.5.

Cheers


EDIT
Just found the link here: -
http://forum.doom9.org/showthread.php?s=&threadid=61001&highlight=nero+6.0.0.15

[crusty]

Ok my two cents on this:

-A standard 700MB CD can hold somewhere between 702 and 703 MB in reality in standard mode. If you use the same mode as with VCD's you can go up to 795MB. This is because in the other mode you forgo on some error-correction bits that are used for normal files.
The avi-container has no built-in error correction, but if you encode to OGM or Matroska, you can get built-in error correction and you can burn in the VCD-mode without the risk that one little scratch would render your CD useless.

-An 90 Minute CD can hold up to 795 MB of data, in standard mode, but as mentioned, not all CD- and DVD-drives can read this type. This is even more of a problem for 100 minute CD's. And you have to be more aware of the quality of the CD's themselves (buy better media).

-If you DO put it on a 100MB medium, you have to make sure that every upgrade you do to your CD- or DVD-drives is compatible. Not impossible, just a lot more fuss.

-I See your movie is 1 hour 23 minutes long. That's not very long and should easily fit onto 1 CD. So forget about the Two CD rip.

-Encode the end credits separetly using a far lower bitrate and heavier filtering and you can gain valueable Megabytes.

-Ogg Vorbis still has no channel coupling for more than two channels, so you will gain little by making a 6 Ch Ogg Vorbis.

-You're encoding for TV output with 6 Channel sound. I suggest you go for a low resolution, like 574 x something or even 512 x something. That way you won't get any big blocks and the lack of detail created by such a low resolution won't show up on TV at all. You will have the AC3 sound and the entire movie on 1 single 703 MB CD.

-Reencoding an AC3 track is always a lossy process. If you want the best AC3 track possible stick with the original.

-Avi does not only not support AAC, it officially doesn't even support Ogg Vorbis, AC3 and vbr mp3's. All applications of these are hacks. Most of them work quite well but trying to mux AAC with Avi is definitely a long shot.

-You haven't said anything about the source at all. I don't know the Movie Johnny English, so you have to comment on the kind of movie it is (dark/light, slowmotion/highaction, etc.).

-You can save some bits by skipping stuff in front of the main movie, like production companies, FBI warnings etc. As long as none of the movie sounds have started yet, you can easily get away with that.

-Xvid is better in lower bitrate situations than DivX. But you want to use Divx otherwise you wouldn't be here. :)

-To play an OGM you have to have tobias' directshow filter or a player that has support for it.

There aren't any Cd's of 1.4Gb
Well in practice no but there are some CD-burners out there that can burn twice the normal amount on special media. These are 1.4 GB Cd's.