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2D disc at 30fps
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AJ T [Avatar]
Newbie Private Message Joined: Sep 16, 2018 17:29 Messages: 12 Offline
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My Camcorder is shooting at 30fps. When creating a 2d disc, the only options I see are 24 or 60fps. I would want the disc output to match what the content was shot in. Is there a way to do this that I'm missing?

This message was edited 1 time. Last update was at May 11. 2020 19:15

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JL_JL [Avatar]
Senior Contributor Private Message Location: Arizona, USA Joined: Oct 01, 2006 20:01 Messages: 4338 Offline
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Quote My Camcorder is shooting at 30fps. When creating a 2d disc, the only options I see are 24 or 60fps. I would want the disc output to match what the content was shot in. Is there a way to do this that I'm missing?

If referring to the "Create Disc" module and your timeline was set to some form of NTSC fps, then you should see several 60i options. A 60i video setting leads to effective 30 frames per second because 2 fields are required for one full image frame. In actuality, it will be 29.97fps to handle color, but that probably matches what you say is a camcorder shooting 30fps if you check the video file details.

Jeff
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tomasc [Avatar]
Senior Contributor Private Message Joined: Aug 25, 2011 12:33 Messages: 5215 Online
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Quote My Camcorder is shooting at 30fps. When creating a 2d disc, the only options I see are 24 or 60fps. I would want the disc output to match what the content was shot in. Is there a way to do this that I'm missing?

Unfortunately the Blu-ray specs were created long ago for film (24p) and television (60i) which is 29.97 interlaced frames or about 60 interlaced fields per second. 1080/60p was added later. You won’t be able to tell the difference using 60i encoding. It will look okay on the computer monitor with the proper video player or on a modern TV.

Edit: Jeff answered first while I was still typing. I agree that 60i should be used.
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AJ T [Avatar]
Newbie Private Message Joined: Sep 16, 2018 17:29 Messages: 12 Offline
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Unfortunately the Blu-ray specs were created long ago for film (24p) and television (60i) which is 29.97 interlaced frames or about 60 interlaced fields per second. 1080/60p was added later. You won’t be able to tell the difference using 60i encoding. It will look okay on the computer monitor with the proper video player or on a modern TV.

Edit: Jeff answered first while I was still typing. I agree that 60i should be used.


Thanks. So would it better for me to shoot the camcorder in 24p since that's one of the options when writing to blu ray so it matches? Or does it not make much of a difference if shooting in 30p but burning to 60i? Would I lose any quality? Any downside to doing this?
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JL_JL [Avatar]
Senior Contributor Private Message Location: Arizona, USA Joined: Oct 01, 2006 20:01 Messages: 4338 Offline
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Quote Thanks. So would it better for me to shoot the camcorder in 24p since that's one of the options when writing to blu ray so it matches? Or does it not make much of a difference if shooting in 30p but burning to 60i? Would I lose any quality? Any downside to doing this?

Use MediaInfo to provide the video details of one of your camera clips so we have the details. But generally recording in 24p for normal nonprofessional recording of typical consumer content is not a real good idea.

Jeff
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AJ T [Avatar]
Newbie Private Message Joined: Sep 16, 2018 17:29 Messages: 12 Offline
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Use MediaInfo to provide the video details of one of your camera clips so we have the details. But generally recording in 24p for normal nonprofessional recording of typical consumer content is not a real good idea.

Jeff


I've been shooting in 60P for about a year but noticed it was taking a lot of space and switched to 30P recently. At the bottom of my post are the Media Info video specs for 60P and 30P.

Again, I'm burning to a 2D Blu Ray and am confused on which options to choose for the 60P videos and the 30P videos.

I see a choice between H.264 and MPEG-2 with the following options. Which should I chose for the 60P videos and which should I chose for the 30P videos?

MPEG 2


  • 1920x1080/24P (26mbps)

  • 1920x1080/60i (26mbps)



H.264

  • 1920x1080/24P (17mbps)

  • 1920x1080/60i (17mbps)

  • 1920x1080/60i (24mbps)

  • 1920x1080/60p (28mbps)




60P

General
Complete name : E:\Sony Videos\2020\4-1-2020\C0063.MP4
Format : XAVC
Codec ID : XAVC (XAVC/mp42/iso2)
File size : 386 MiB
Duration : 1 min 2 s
Overall bit rate mode : Variable
Overall bit rate : 52.1 Mb/s
Encoded date : UTC 2020-04-01 19:23:42
Tagged date : UTC 2020-04-01 19:23:42
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.2
Format settings : CABAC / 2 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 2 frames
Format settings, GOP : M=1, N=15
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1 min 2 s
Bit rate mode : Variable
Bit rate : 50.1 Mb/s
Maximum bit rate : 60.0 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 59.940 (60000/1001) FPS
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.403
Stream size : 371 MiB (96%)
Encoded date : UTC 2020-04-01 19:23:42
Tagged date : UTC 2020-04-01 19:23:42
Color range : Limited
Color primaries : BT.709
Transfer characteristics : xvYCC
Matrix coefficients : BT.709
Codec configuration box : avcC

30P
General
Complete name : E:\Sony Videos\5-12-2020\C0085.MP4
Format : XAVC
Codec ID : XAVC (XAVC/mp42/iso2)
File size : 606 MiB
Duration : 1 min 39 s
Overall bit rate mode : Variable
Overall bit rate : 51.3 Mb/s
Encoded date : UTC 2020-05-12 23:31:42
Tagged date : UTC 2020-05-12 23:31:42
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings : CABAC / 2 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 2 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1 min 39 s
Bit rate mode : Variable
Bit rate : 49.5 Mb/s
Maximum bit rate : 60.0 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) FPS
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.796
Stream size : 585 MiB (97%)
Encoded date : UTC 2020-05-12 23:31:42
Tagged date : UTC 2020-05-12 23:31:42
Color range : Limited
Color primaries : BT.709
Transfer characteristics : xvYCC
Matrix coefficients : BT.709
Codec configuration box : avcC

This message was edited 1 time. Last update was at May 23. 2020 15:12

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JL_JL [Avatar]
Senior Contributor Private Message Location: Arizona, USA Joined: Oct 01, 2006 20:01 Messages: 4338 Offline
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Quote I see a choice between H.264 and MPEG-2 with the following options. Which should I chose for the 60P videos and which should I chose for the 30P videos?

For going to BD media, H.264, 1920x1080/60i (24Mbps) would be most common. If your BD standalone players support 60P BD playback, 1920x1080/60p (28Mbps) would be better quality but not all standalone BD players will play it, you just have to try.

Jeff
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AJ T [Avatar]
Newbie Private Message Joined: Sep 16, 2018 17:29 Messages: 12 Offline
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For going to BD media, H.264, 1920x1080/60i (24Mbps) would be most common. If your BD standalone players support 60P BD playback, 1920x1080/60p (28Mbps) would be better quality but not all standalone BD players will play it, you just have to try.

Jeff

just to clarify, your saying to use the H.264 1920x1080/60i (24mbps) for BOTH the videos shot in 60p and the videos shot in 30P? Same setting for both?

This message was edited 1 time. Last update was at May 23. 2020 18:26

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