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Guy Burns
Inspiring
July 9, 2023
Question

How to concatenate m2ts files; or simulate a blu-ray folder

This is not really a Premiere question, more a Encore question, but that forum no longer exists so I'll try here.

Background

I present audio-visuals in local venues of Tasmanian wilderness areas. The video chapters are exported from Premiere as Blu-ray files, assembled in Encore, built to a Blu-ray folder on a USB stick, and presented to an audience from that blu-ray folder using an Oppo blu-ray player. The Oppo is a rare beast – it can play video from a Blu-ray folder on USB.

I do not trust computers to present a show. Too many things can go wrong. I only trust a dedicated device – a Blu-ray player, which has the professional-looking niceties of Opening titles, End Titles, and so on.

 

Problem

The problem is Murphy's Law, so I have backups of everything when I show publicly. Yes everything, including a spare projector. And I had to call on it once, 20 minutes before show time. I also take a spare blu-ray player – but it can't play blu-ray folders from USB. And Oppo projectors are no longer made.

So, I burn the blu-ray folder to disk, just in case the Oppo or the USB stick pack it in. Problem – my latest show occupies 28GB, too big to fit on a 25GB disk. And I don't trust dual-layer home-burnt disks.

 

An idea

My initial idea was to extract the m2ts files from the blu-ray folder, concatenate them using tsMuxer, copy to USB stick, and play the resulting 28GB file on my spare blu-ray player. However, tsMuxer has a problem – the longer the concatenated file is, the more out of sync the sound is.

 

Questions

  • Are there any dedicated video devices, other than Oppo, that can play from blu-ray folder on USB?
  • Any suggestions as to how I can concatenate m2ts files without re-encoding? I definitely want to use the m2ts files from the blu-ray folder, and not have to export from Premiere in a different format. The m2ts's are already tested and working fine.
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1 commentaire

Ann Bens
Community Expert
Ann BensCommunity Expert
Community Expert
July 9, 2023

1. Know of no device.

2. You could rewrap the m2ts with Shutter Encoder to mp4 and join the with a MP4 joiner program without re-encoding.

G
Guy BurnsAuteur
Inspiring
July 10, 2023

Thanks for the suggestion. I spent a couple of hours with Shutter Encoder, which not only can rewrap, but it can also merge files into one big file. Worked well.

 

With my Oppo, when I tested fast forward and then reverse (imagining during a presentation, that something has gone haywire, and I have to find the 'haywire' spot), the Oppo went stupid, jumping all over the place. On the other hand, my el-cheapo LG player handled forward/reverse perfectly – but if I jumped to next chapter on the remote, it jumped to the next video file on the USB stick. Looks like as long as I don't have to move about within the video, Shutter Encoder might prove useful.

 

Then I came across MakeMKV. Very nice. I could drag the BDMV folder onto the interface, select a destination, press Make MKV, and away it went. Amazing. Even more impressive, was the fact that my Oppo could now pick up the chapter breaks. I could jump between chapters with the Oppo, but not with the LG player.

 

Ques: the 28GB MKV file looks like one file to me. How does the Oppo blu-ray player know there are chapters inside?

 

 

 

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