----- HDTV Magazine Tips List -----
Hmm... the PS3 looked just fine otherwise with pressed movies? Does that
display show you the incoming scan rate and frame rate?
Richard Fisher
ISF and HAA certified
HD Library is provided by Techservicesusa.com
Publisher
http://www.hdtvmagazine.com/forum/index.php
Doug Johnson wrote:
> ----- HDTV Magazine Tips List -----
>
> Thanks for the input... I have found, if not a solution, at least a work
> around.
>
> This project was shot on the Sony F900 @ 23.976 fps, and it was edited on an
> Avid Nitris DS at the same frame rate.
>
> It was encoded to Mpeg 2 in Adobe Encore and burned to Blu Ray all at 23.976
> fps.
>
> I set the PS3 to 1080p, the Pionner Plasma I ran it into could accept that
> res/frame rate. This is where I really saw the problem, it wasn't as bad on
> other displays/players.
>
> On a whim I switched the PS3 to 1080i and it played way better.
>
> I tested it using an HDMI cable on another plasma, and the ps3 asked if I
> wanted to set the unit to the 'optimal resolution'. I said yes, and it chose
> 1080i. It played smoothly at that rate
>
> I'm guessing that none of the displays I looked at were really meant to be
> displaying 1080p.
>
> Now that I know that I can burn a disk that works, I can start the task of
> optimizing my process.
>
>
> Thanks Again.
> Doug
>
>
> -----Original Message-----
> From: HDTV Magazine Tips List On
> Behalf Of Rodolfo La Maestra
> Sent: Friday, March 07, 2008 1:36 PM
> To: HDTV Magazine Tips List
> Subject: Re: Blu Ray encoding...
>
> ----- HDTV Magazine Tips List -----
>
> Shane has good memory.
>
> Doug,
>
> Questions for narrowing down the problem: Which camera?, which horizontal
> resolution? (1440 or 1920), which video processing steps between camera and
> display? which projector/scaler (and frame rate acceptance)? which Blu
> player? Which video codec? Have you tried using other video codec?
>
> Responding your question, all content sourced from "film" is transferred as
> 1080p at 24fps on the blu-ray disc. You can create the same film effect
> with a video camera that has that frame rate, rather than operate it as 60i.
>
> In the case Shane mentions I did not have any problems with the movies I
> played until one day Shane and Dale sat on my HT a year ago when they came
> to Washington for CEA; we viewed Casino Royale that just came out on
> Blu-ray, the content was recorded in a video codec that was producing
> playback problems at 24fps, a feature of that Blu-ray player (and only on
> the Blu-ray format at that time).
>
> My Sony Blu-ray player is the original top of the line I purchased on Nov 06
> when it just came out. It has the ability to output 24fps content as direct
> or as 3:2 pulldown (to get to 60i and p).
>
> To fix that problem of that video codec I later found out that it required a
> software upgrade. Sony did not know about, and took a while for them to
> understand what I was describing because almost no one was capable to 24fps
> playback (at higher frame rates of course); but they fixed it later.
>
> The projection at 1080p 48fps of the 24fps source was dropping frames from
> time to time making the image jumpy at intervals, which once you start
> noticing is very disturbing, and I believe this might be what you are
> experiencing. You have to check the owner's threads in Forums about your
> player to determine if that problem was identified already, and to take note
> of the fix, maybe is already available.
>
> Now my Sony is at its 3.5 current release (about 5 upgrades) and it plays
> very clean, but it was frustrating to me because I specifically built the
> system for CinemaScope and 1080p film at 24fps. Toshiba did not even care
> about 1080p, not to mention 24fps, so I was not switching to the competitive
> format when those features were ignored by the format creator; so I had no
> choice than to wait, or to switch to Pioneer Elite at about $1500 at that
> time (I paid $1000 for my Sony).
>
> I am glad that I waited.
>
> When you choose the recording frame rate you should consider your target
> audience, their need or preference (or not) of film look, and their playback
> equipment capability, before you make your original as 24fps 1080p, or 1080i
> 60.
>
> For most people 24fps playback would force their equipment to do 3:2
> pulldown to get to 60i and then deinterlace to 60p, but your audience might
> be different.
>
> If your video content is informal, regular viewers might not notice the
> heavy video processing of the conversions, but if the content is very
> detailed with small objects on the image, and complex, with many camera
> pans, you might be better off by staying away from interlace recording and
> minimize playback conversions for quality viewing, and perhaps offering also
> a separate 60i edited version you encoded at your editing lab from the 24fps
> original to make sure you control the quality of the conversion with
> professional equipment, not by the TV of the viewer.
>
> However, 60i is actually as roomy as 30fps in content storage, and space
> might be an issue to consider for that version of disc (the 6 extra frames
> stored as 12 interlaced fields on the 3:2 pulldown processing would take
> about 25% more space over the 24fps progressive version). You might need
> the space for extra features and hi-bit audio, such as 24+ Mbps DTS MA
> edited at very high bit rate at 7.1, if audio quality is important for your
> content, and you might need also to add a 5.1 DD track for legacy support of
> DD receivers over optical or digital coax connections.
>
> If I would be you, I would try first with a 24fps original and maintain the
> signal as progressive on the chain as much as possible, playback equipment
> that converts 24fps discs to 60i/p outputs improve every day and video
> processing gets refined every day with more processing power and more bits
> for linearity.
>
> I hope this helps, this sounds like an interesting project.
>
>
> Best Regards,
>
> Rodolfo La Maestra
>
>
> -----Original Message-----
> From: HDTV Magazine Tips List On
> Behalf Of Shane Sturgeon
> Sent: Friday, March 07, 2008 2:50 PM
> To: HDTV Magazine Tips List
> Subject: Re: Blu Ray encoding...
>
>
> ----- HDTV Magazine Tips List -----
>
> Make sure your PS3 is up to date with the latest firmware. Early
> revisions of the PS3 firmware had dropped-frame issues. Dale, Rodolfo
> and I witnessed this first-hand last year with Casino Royal. Rodolfo may
> be able to provide more insight here, as I believe he was following up
> on it with Sony.
>
> Shane Sturgeon
>
>
>
> Doug Johnson wrote:
>
>>----- HDTV Magazine Tips List -----
>>
>>Our company is making the jump to encoding our HD work on blu ray.
>>
>>Does anyone here have experience doing this?
>>
>>Specifically... We shoot almost exclusively in 1080p 23.976. My first
>
> tests
>
>>don't look so hot. There's a funny sort of frame rate issue. Not quite a
>
> 3:2
>
>>stutter, more like the PS3 (my test unit) is dropping frames.
>>
>>Should my video be going to BD as 23.976? Or should I be adding a 3:2 and
>>moving to 1080i 29.97?
>>
>>How are most movies being put to Blu Ray? 23.976? 29.97?
>>
>>Thanks in advance
>>Doug
>>
>>
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