Are there any Blu-Ray authoring tools that can import MKV and make menus?

[ikantspelwurdz]

Here's what I'd like to do.

I have six MKV files. Each one has three streams:
* Video stream, H264 - MPEG-4 AVC
* Audio stream, PCM S16 LE (araw)
* Subtitle stream, BD subtitles (bdpg)

And each one is just under 4GB, meaning they should fit nicely into a single layer BD-ROM disc.

I want to make a Blu-Ray with a simple menu that lets me pick which of these files I want to play, and also whether subtitles should be on or off. I don't want to re-encode any video or audio.

Are there any free BR authoring tools that will let me do this? If not, any fairly inexpensive ones?

[Capsbackup]

multiAVCHD will do what you ask if the files are already Blu-ray compliant. (1920 x 1080, 1080 x 720, etc...)

[ikantspelwurdz]

Neat.

Is there a way to change the aspect ratio of the thumbnails? I've given each title a 4:3 JPG for a poster/thumbnail, but it seems to want to stretch the thumbnails to 16:9.

Also, I gave it a test drive, and there was a problem with the subtitles. Each title in the created BD image had two subtitle streams, and neither worked.

[Capsbackup]

I am not sure about the aspect ratio of the thumbnails, but multiAVCHD may try to follow the aspect ratio of the actual title rather than the inserted thumbnail jpg.
As for subtitles, you could demux your subtitle from the original MKV, then once you have the title loaded, remove the ones from the MKV, then add external subtitle ( the one you demuxed ). Set your language; eng, fra, spa, etc... select change and try the backup to see if it now works properly.

[ikantspelwurdz]

I'm trying to use MKVExtract GUI to get the subtitles. It gives me a warning in Spanish. The English translation is:

New format detected
(S_HDMV/PGS) Unknown Format for MKVExtractGUI
Enter the extension that will be associated with this type of track.
Output extension (without dot)

I try "srt," click "OK," and then click "Extract," and it says:
"Files demuxed successfully!"

But the file it promised (Track3.srt) is nowhere to be found.

[Capsbackup]

Try to load the file in tsMuxeR GUI, maybe it will alow the demux of the subtitle.

You can use PGS subtitle format, so perhaps try that instead of SRT.

[sneaker_ger]

MKVExtract GUI is deprecated. Use MKVcleaver (http://forum.doom9.org/showthread.php?t=152108) or MKVExtract GUI 2.

[ikantspelwurdz]

Thanks - I used MKVCleaver, and the subs preview alright. I gave it another go, and now I have an interesting problem. The subtitle menu for the first title works alright. So do the subtitles. But if I select any title other than the first, entering the language menu crashes PowerDVD. PowerDVD just closes as soon as I click the button.

The subtitles themselves work fine for all chapters. I noticed that when playing the first title, PowerDVD describes the subtitles as "English." When playing another it describes the subtitles as "6 speaker 0."