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Blu-Ray from 29.93 timeline?
Is it possible to encode and burn a good looking Blu-Ray disc from a file originating from a 1080i sequence at 29.97 fps? I have a guy who is trying to author a Blu-Ray disc and can’t seem to make it work and insists that it can only be made from a 23.98 fps sequence. It would require re-editing the entire program including new audio sweetening, which I would rather not do if possible.
Comments?
Thanks,
Tom -
15 Replies
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Oops!
That subject line should read 29.97 and not 29.93.
Sorry… -
[Tom Matthies] “Is it possible to encode and burn a good looking Blu-Ray disc from a file originating from a 1080i sequence at 29.97 fps?”
Yep, that’s all we do.
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.STOP STARING AND START GRADING WITH APPLE COLOR Apple Color Training DVD available now!
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yes, 29.97 or 23.98 for 1080.
beware that 1280×720 is either 23.98 or 59.94 (fps)
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[Chris Borjis] “beware that 1280×720 is either 23.98 or 59.94 (fps)”
Also, beware that 720 fails for us about 2 out of 3 times when we try to use it for BluRay so we always go with 1080i / 29.97
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.STOP STARING AND START GRADING WITH APPLE COLOR Apple Color Training DVD available now!
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The discs that our guy is trying to make are ending op looking “jaggy” when played back on a PS3 and into a monitor via HDMI. They swear that the PS3 and the monitor are set up correctly but the results are still aliased badly. The 1080i sequence is exported via Compressor 3 as an HD DVD with the Blu-Ray radio dial ticked. All other parameters are pretty much the default settings. The resulting Mpeg files are then used for the actual burning. I’m not certain what he is using to author the discs but I believe it is Encore. This is a simple put-it-in-and-play disc with no additional authoring. Just close the drawer and hit “play”. We’ve authored discs in the past without any of these problems, but those discs were all After Effects files and did not contain actual video from a location camera.
Any additional thoughts?
Thanks again,
Tom -
[Tom Matthies] “The discs that our guy is trying to make are ending op looking “jaggy” when played back on a PS3 and into a monitor via HDMI.”
Either the quality is not set high enough or you’ve got reverse interlacing going on or you’ve taken a progressive video and compressed it as interlaced.
Our BluRays looked pretty much identical to their HD originals here.
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.STOP STARING AND START GRADING WITH APPLE COLOR Apple Color Training DVD available now!
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It’s pretty straightforward on the editing. It started out as Sony HD XDCam footage shot at 23.98P. It was brought into my machine via a Kona 3 as 1080i DVCPro HD at 29.97. Edited the usual way, exported as a self contained Quicktime and run thru Compressor 3. The bit rate is as high as I dare to go while not choking the PS3 on playback. The MPeg file looks good when played back before going to be authored but I loose control of the project at this point when the MPeg files go off to be authored and burned.
WHEN will Apple enable us to do out own BluRay authoring with some decent support.
Tom -
If it was shot 23.98 why are you capturing and editing 1080i?
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It’s a :30 sec. spot that also has a couple of upconverted legacy shots in it. Since it’s being delivered on tapes to most of the TV stations, I chose to edit in 29.97 from the beginning. The spot will also be delivered electronically to several venues including Time Warner Cable and Charter Cable. They require 29.97 for their formats. It’s easier to just edit at 29.97 and not have to deal with frame rate conversion on the electronic files later. The problem is developing because a few of the stations are going to air it in HD and require a BluRay for their source (!? -I kid you not!)
Tom -
Does the whole thing look bad or just the legacy shots?
Wht are your frame controls set to in Compressor for field order and deinterlace?
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