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Cutting the Drama Out of Blu-ray Production

Neil Wilkes
  • London, England
  • United Kingdom
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Neil Wilkes's Discussions

SHA1 & SHA256 at replication
5 Replies

Hi All.Can someone please explain to me the difference between SHA1 and SDHA256, and why the factory would choose to use SHA256 - and for what reasons?All I can find is information that SHA1 is…Continue

Started this discussion. Last reply by Denny May 16, 2016.

Stereo LPCM at 192KHz - specs?
10 Replies

I hope someone can make this a little clearer for me as I have run into what seems to be a conflict.We've been looking at Scenarist BD recently and on one disc the specs called for stereo LPCM at…Continue

Started this discussion. Last reply by Ghost Helper Sep 16, 2014.

Version 4 - no notification???
8 Replies

Hiya.Did anyone get any emails from Sony about this?We just found out about this upgrade version from a third party mailout - nobody from Sony has told us anything (which makes us feel unloved) and I…Continue

Started this discussion. Last reply by Neil Wilkes Feb 15, 2014.

Intermittent Saving problem
12 Replies

We have discovered an intermittent problem.Create a new project, add some assets & save it - close DoStudio.Relaunch & try to open the saved project from the "recent projects" drop-down, and…Continue

Started this discussion. Last reply by Neil Wilkes Oct 23, 2013.

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Latest Activity

Denny replied to Neil Wilkes's discussion SHA1 & SHA256 at replication
"who is the replicator you are using?"
May 16, 2016
Neil Wilkes replied to Neil Wilkes's discussion SHA1 & SHA256 at replication
"You cannot do that - PS3 and Xbox 1 will not allow playback of written discs because of so-called "piracy". Image buffer extremely low. All graphics are Java drawn (this is not a DSA project - I was simply asking if anyone knew where…"
May 13, 2016
Marcus I replied to Neil Wilkes's discussion SHA1 & SHA256 at replication
"Have you burned a Non-AACS check discs from your authoring station and played them back on a PS3 or XBox? Out of curiosity, how many mb is your Image Buffer? Is pretty it low like 1.5mb or 2mb?"
May 12, 2016
Neil Wilkes replied to Neil Wilkes's discussion SHA1 & SHA256 at replication
"I normally use MD5 myself. The problem is that we did 2 projects in exactly the same way to replication, but one will not play on a PS3. Sony say this is because PS3 does not support (and there are nop plans to support it at all) SHA256. What I do…"
May 12, 2016
Marcus I replied to Neil Wilkes's discussion SHA1 & SHA256 at replication
"It's just a checksum value to guarantee data was successfully transferred from the Authoring House to the Replicator. With our Replicator, they give you the option to use MD5 or CRC32. SHA256 is becoming more common checksum in other…"
May 11, 2016
Neil Wilkes and Denny are now friends
May 10, 2016
Neil Wilkes posted a discussion

SHA1 & SHA256 at replication

Hi All.Can someone please explain to me the difference between SHA1 and SDHA256, and why the factory would choose to use SHA256 - and for what reasons?All I can find is information that SHA1 is deprecated, and SHA256 is part of SHA2.What does this mean for playability in BD-J projects, and is there anything I can do to control what type of hashing is used?See More
May 10, 2016
Neil Wilkes replied to Robert Witrak's discussion Introduction
"Leaving Encore is a great move and one you will not regret. I never did understand their poor audio implementation (PCM stereo only, surround in AC3 or DTS (in passthrough mode) and no PCM Surround at all. The main thing with DoStudio is that whilst…"
Aug 7, 2015
Neil Wilkes replied to Swen Erdrich's discussion UHD & Dosudio
"I have to confess that I believe you are right - for now. Blu-ray has done reasonably well (although not nearly as well as originally hoped for) but a 4k subset will be a niche within a niche and there will undoubtedly be far, far more…"
Aug 7, 2015
Neil Wilkes replied to Miles Tudor's discussion Bit Budgets
"Got it - that works. Managed to add the PCM values in at 24/96 for both stereo & surround. Excellent help much appreciated too. All I need to do now is figure out why it thinks I cannot set a legal LB - I suspect it is because it assumes main…"
Mar 17, 2015
Neil Wilkes replied to Miles Tudor's discussion Bit Budgets
"Quick Question: How can I edit the available audio types to include the following please: 1 - LPCM 2.0 @ 24/96 2 - LPCM 5.1 @ 24/96 I have tried to edit using "user audio" but I keep crashing the spreadsheet when I try. Almost certainly…"
Mar 17, 2015
Neil Wilkes replied to Miles Tudor's discussion Bit Budgets
"Hi Miles (with apologies all round for delayed response - been ill) Thank you very much indeed - I will give this a go & see if it does what we need it to. I would try & make my own, but I have no real clue how to use Excel......."
Mar 17, 2015
Philippe Perquin and Neil Wilkes are now friends
Mar 5, 2015
Neil Wilkes replied to Miles Tudor's discussion Bit Budgets
"Did you ever finish this, Phillippe? I am really struggling to get my head around the maths for complex projects with multiple playlists & varying content. The dropbox link is long dead, and I was really hoping you may have a copy I can get from…"
Mar 4, 2015
Ghost Helper replied to Neil Wilkes's discussion Stereo LPCM at 192KHz - specs?
"Hi Again, I am also adding here two images from the same specs that outline the Disc Player specifications. D.2.19 of the BD Spec.Note : Center column is for Profile 1, right column is for Profile 2. Thanks, Rob"
Sep 16, 2014
Ghost Helper replied to Neil Wilkes's discussion Stereo LPCM at 192KHz - specs?
"Hello Neil and all, I am attaching an image with the exact audio stream specifications for Blu-ray from the BDA part 3 BDROM AV specs. Hope this helps, Rob"
Sep 16, 2014

Profile Information

Occupation
DVD Author, Sound Engineer, Company Director
Specialties/Interests
High Resolution surround sound in all it's permutations.
Company
http://www.opusproductions.com

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