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Making one blu ray ISO from multiple MKV streams?

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So I’m finally getting some of red menace’s Godzilla projects that I’ve been meaning to for a while. His Godzilla 1985 reconstruction also includes separate MKV’s of the theatrical trailer and the music video. I’d like to create a Blu-ray Disc that contains the complete movie along with the trailer and music video. I don’t care about being fancy with menus or chapter stops. I’d be perfectly happy if it would just play the movie followed but the bonus features.

I’m capable of remuxing an MKV into a blu ray iso with ts_muxer, but I’ve never tried to make one ISO out of three separate mkv’s… is this even possible?

Thanks!

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Yep. Start by muxing each item into its own BD folder (not iso yet). I like ClownBD for this, since it does the best job of demuxing before remuxing, but tsMuxer will be fine too.

Then drag your folders into a new MultiAVCHD project. It will ask each time if you want to reauthor them: say no each time.
When your folders are all listed in the order you want them, hit the ‘merge’ button in the middle - this will save everything as a new BD folder with a combined playlist. you DO need to do the final BD assembly after this (click the main ‘Start’ button and select Blu-ray disc) but this should take a matter of seconds if you’re saving to the same HDD.

Note that this process only produces a Blu-ray folder - no problem if you want to burn to disc, but if you need an iso version you can use imgBurn to convert.

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Cool, thank you. If I want to produce a disc that will play in my blu ray player on my tv, will the blu ray folder work or does it have to be an ISO?

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If you’re burning a disc, it doesn’t matter - whether you load a disc folder or an iso into imgBurn, the result is the same.