How do I convert MP4 to AVCHD?

[rnaval]

I've got a Flip UltraHD camcorder that saves MP4 1280x720 30fps files. I've used MultiAVCHD to convert these files to AVCHD format and burned them to DVD in order to playback in high resolution 720P on a Panasonic BD30 BlueRay player.

The problem I'm having is that the burned DVDs show the menus properly, but when playing the actual video, I get sound but no video. Most probably my video is not AVCHD\BlueRay compliant.

I've tried Transcode using MultiAVCHD and selected 29.970fps but I get the same problem.

[guns1inger]

Post a mediainfo of the camera footage so we can see what it actually shoots. However it does sound like you may have to re-encode the video to get it working correctly.

[rnaval]

Here's the mediainfo on the video file.

General
Complete name : C:\Documents and Settings\Rohit.BEDROOM.000\Desktop\Part III.MP4
Format : MPEG-4
Format profile : Sony PSP
Codec ID : MSNV
File size : 39.4 MiB
Duration : 36s 333ms
Overall bit rate : 9 106 Kbps
Encoded date : UTC 2009-06-21 12:25:07
Tagged date : UTC 2009-06-21 12:25:07

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 1 frame
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 36s 333ms
Bit rate mode : Variable
Bit rate : 8 970 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.324
Stream size : 38.8 MiB (99%)
Language : Japanese
Encoded date : UTC 2009-06-21 12:25:07
Tagged date : UTC 2009-06-21 12:25:07

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Codec ID : 40
Duration : 36s 316ms
Bit rate mode : Constant
Bit rate : 132.3 Kbps
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 44.1 KHz
Resolution : 16 bits
Stream size : 581 KiB (1%)
Language : Japanese
Encoded date : UTC 2009-06-21 12:25:07
Tagged date : UTC 2009-06-21 12:25:07

[rnaval]

It turned out to be the fps - once I re-encoded using 23.976 as the fps, it worked fine. If only I didn't have to re-encode, what a pain that is. I would in the future opt to buy a camcorder that produces videos that are AVCHD \ BlueRay compliant.

[creamyhorror]

720p30 is AVCHD compliant. It may be some other setting in the encoder that is making it compliant.

[ronnylov]

No, 720p30 is not AVCHD compliant. AVCHD is designed to be bluray compliant, and blu ray does not allow 720P30 format.

https://www.videohelp.com/hd

"Video frame size
High Definition Video
1920x1080x59.94i, 50i (16:9)
1920x1080x24p, 23.976p (16:9)
1440x1080x59.94i, 50i (16:9) AVC / VC-1 only
1440x1080x24p, 23.976p (16:9) AVC / VC-1 only
1280x720x59.94p, 50p (16:9)
1280x720x24p, 23.976p (16:9)
Standard Definition Video
720x480x59.94i (4:3/16:9)
720x576x50i (4:3/16:9)"

See also: http://www.avchd-info.org/format/index.html

I would make it 720P60 with duplicated frames (altetrnatively interpolated moiton corrected frames using MVTools in avisynth) to avoid any judder from the framerate conversion.

[ranosb]

Try DEMUXING using Tsmuxer changing the fps of the video from 30fps 29.970, then changing the tempo on the audio -.1% to sync with the video.

[Cornucopia]

6 years later!??! For a 1 post spam!!???!! (that doesn't even really solve the problem)
And you can't even spell your avatar handle right?

Somebody bookmark this one as a good example of what not to do.

Scott

[Baldrick]

6 years later!??! For a 1 post spam!!???!! (that doesn't even really solve the problem)
And you can't even spell your avatar handle right?

Somebody bookmark this one as a good example of what not to do.

Scott

No. Don't bookmark it. Just click on Report and I will ban them immediately.