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DVD-BOY

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Join date
20-Sep-2004
Last activity
13-Jun-2025
Posts
458

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Post
#91435
Topic
.: The Zion DVD Project :. (Released)
Link
https://originaltrilogy.com/post/id/91435/action/topic#91435
Time
I've never used the Sony Authoring system, but I have played briefly with their encoding set-up. I do remember being told that if you use the Sony equipment in conjunction with each other, it was possible to author a seamless layer break as the encoder could be told / would calcualate where the layer break would go doing a feature, and would gradually bring the bitrate down either side of the layerbreak, allowing the DVD player to store more frames in it's buffer as it were. As I said, not having used the authoring system, who knows if this was true or not.

As I say, true Seamless branching via the proprietry authoring setups (I believe there is 1 in the UK!) involves one system doing the encoding and authoring (and multiplexing), because it involves some pretty tricky juggling of frames and bitrates and gop sizes.

DVD-BOY
Post
#91223
Topic
.: The Zion DVD Project :. (Released)
Link
https://originaltrilogy.com/post/id/91223/action/topic#91223
Time
It should be relatively easy, although as Grisan says easier in Maestro.

The key points would be:

- Make sure your angles are the exact same length.
- Make sure they contain the same gop structure (Auto Scene Detect in Encoding is a big no-no)

I don't know in Scenarist whether you would 'break' the film down into pieces (which you can do with the 'start' and duration dialogues), and they join the pgc's together seamlessley, so that you have seperate chunks with the angles.

Obviously with Maestro you can have multiple bits of video on your timeline, whereas with Scenarist each 'track' comprises of one piece of audio, video etc.

ApolloOne may be of more use, depending what his 'weapon of choice' is.

DVD-BOY
Post
#91224
Topic
DVD Packaging
Link
https://originaltrilogy.com/post/id/91224/action/topic#91224
Time
Unfortunately, the flimsy outer sleeve is typical Fox packaging, vs Paramount's sturdier Indiana Jones box.

24, Alien, Die Hard, Simspons etc are all fox titles and feature poor boxes, whereas the likes of the Godfather, American Pie & Lion King released by other studios are much thicker.

A shame, but then WE all know we were short-changed with this set...

DVD-BOY
Post
#90992
Topic
.: The Zion DVD Project :. (Released)
Link
https://originaltrilogy.com/post/id/90992/action/topic#90992
Time
Originally posted by: DanielB
Using two angles does not mean using half the bitrate. It's a little un-intuitive, but multi-angle bitrates work like this: If you're using two angles, the MAXIMUM bitrate for EACH angle of video plus all audio plus all subpictures must not exceed 8.0 Mbps. Figure on subtracting about another 1.2 Mbps for each additional angle. So for a two-angle encode, you can still have a high maximum bitrate.
references? evidence?


Google is your friend, Daniel-san:

Howdy Trai - "Mr. DVD"

I was incorrect in the following statement:

> Check out the tutorial in DVDSP. They use 3 angles each at 6.4 Mbps. That
> would put the total data rate at 19.2 Mbps + the audio data rate. No
> problems.

19.2 Mbps is NOT the actual bitrate being delivered per second, because the
the other video streams/angles cannot be added to the total data rate per
second as they aren't "playing". But rather, being skipped over as you
stated. Sorry to mislead anyone. It is a fine distinction but an important
one.

However, there is a small correction to your post as well :-)

The maximum bitrate for multi-angle video streams per the specification is 8
Mbps not 7.

I was only suggesting 7 because it is never a good idea to push the bitrate
limits to their specification max.

The maximum sustainable total bitrate for a combined video stream (single),
audio and subtitles is 9.8 Mbps. Some players may support a burst rate that
is slightly higher 10.08 Mbps, but I wouldn't recommend pushing that.

If you never knew the reason for the 9.8 Mbps limit:

1x DVD drives sustains 11.08 Mbps. 1 Mbps is taken up by navigation overhead
leaving 10.08. The DVD-Video peak data rate was/is constrained to 9.8 Mbps
to support buffering for seamless branching which has nothing to do with
multi-angle video FYI.

Happy New Year Gang!

-pete -- Courtsey of Apple's DVD List Archive.

I believe multi-angle is based upon interleaving the angles together, which is why there can sometimes be a pause before your player changes angles as it clears it's buffer as it were. Seamless branching is more complicated as it involves encoding and multiplexing the files in such a way that they 'ease in and out of each other' for want of a better term.

As it appears the seamless branching guide deals with pre-prepared streams, perhaps Dr Gonzo could help out with his copy of TFDVDEdit?

DVD-BOY
Post
#90403
Topic
.: The Zion DVD Project :. (Released)
Link
https://originaltrilogy.com/post/id/90403/action/topic#90403
Time
I must admit I've never fully tried doom9's Scenarist guide for seamless branching - I'm more of a Spruce Maestro man myself with very limited playtime on either Scenarist or Creator.

As I understand it, seamless branching is possible due to the video being encoded and multiplexed together in a very specific way, which is why the only system that can do it is a proprietary Toshiba Encoding / Authoring system - somebody please correct me if I'm wrong. Sonic have never annouced that Scenarist can do true seamless branching, otherwise they would have been shouting it from the rooftops. I believe they can do seamless multi-angle, but as already stated that is based upon the streams being the same length.

TFDVDEdit. Before I say anymore, Dr Gonzo, I love your DVD set, and so far it is the only set I have downloaded.

Now everyone I've spoken to about TFDVDEdit, have said that Trai Forrester is full of Bantha Poodoo, and is trying to build an elite 'club' with his software. From his website he promises that his software does alot, but then it's a case of "If you have a problem once you've bought it, TOUGH - NO REFUNDS". Don't get me wrong, I've read up on his seamless branching article, and have been excited by it, but various people I've then spoken to, who have both met the guy and been in the DVD Industry for a long time, have not said the nicest of things about him. Again, I'd be happy for someone to prove me wrong.

Speaking of which, has anyone tried a 'seamless branching test', say for example a 10 minute segment around jabba in ANH?

Zion, seamless branching on not, between Laserman's video capture and your menus, this sounds like one niiice dvd set.

DVD-Boy
Post
#89567
Topic
.: The Zion DVD Project :. (Released)
Link
https://originaltrilogy.com/post/id/89567/action/topic#89567
Time
Zion,

Seamless branching isn't possible on any kit (unless you know somthing I don't...) but if you just want to highlight the changes you've made, and aren't making the scenes any longer, you should be able to use the angle feature as you intend for the opening crawl.

I haven't tried this myself mind you, but I'm pretty sure if you set the video to angle 2, it will keep this through the whole movie, even the parts without a second angle (It's as if the 1st angle fills in the blanks in the 2nd angle if that makes sense!)

With regards to burning DL discs, I heard setting the book type to DVD-ROM can help, as can burning via DVD-Decrypter: something about burning from an ISO file means the layer breaks gets put where you author it, while just using Nero means it fills the entire first layer, before going onto the 2nd layer. Also the cell the layer break is put on has to be flagged as non-seamless, which Neror may or may not do.

Oh, and I too love the menus !!

DVD-Boy
Post
#65454
Topic
UK differing 2004 Star Wars Trilogy DVD BoxSet Covers...
Link
https://originaltrilogy.com/post/id/65454/action/topic#65454
Time
Hi Guys,

Long time reader, first time poster!

I pre-ordered my MVC copy yesterday instore, with a view of getting one of those boxes. Now, I haven't had a look at the box itself yet, because the instore price is £32.99! I don't see how that box can be 'free' with instore pre-orders, when the boxset is £26.99 (+ £1 P&P) if you order through their website!

The sales assistant made a big deal out of the box, saying it would be £10 if you bought it seperately but you got it free when you pre-ordered.

Now I'm a packaging-ho like the next man, but that's a lot of money for a box.

Jeff