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[jctcom]

Hi all.

I am wondering if there is any difference at all between .thd & .mka files.  I have been ripping my Dolby Atmos Blu-Ray Audio disks so I can play them without having to load the disk up each time.  I extract the files to .thd using DVD Audio Extractor. 

I have been converting them to .mka (Just by renaming the extensions) because I seem to remember reading somewhere that .mka was taggable where as .thd is not.

That does not seem to be the case though.  At least JRiver does not seem to be able to save most of the tag information so I am wondering.

1. Am I doing something wrong that my .mka files are not able to have the tags saved within them?  or
2. Is there any point in changing them from .thd to .mka  Either way I only really play them in JRiver so not sure there is any point in changing the extension if it is not going to make them taggable?

Thanks in advance.

Carl.

[Hendrik]

Media Center does not support writing tags to .mka files at this time.

Additionally, just renaming a file does not change its type and add additional capabilities to it, the actual format is what matters.

[jctcom]

Media Center does not support writing tags to .mka files at this time.

Additionally, just renaming a file does not change its type and add additional capabilities to it, the actual format is what matters.

So I am better to just leave them as .thd?  Will Media Center play those?  Also I don't think .thd will ever be taggable where as I think some programs already can tag .mka?  Maybe Media center will be able to save their tags down the road?

Carl.

Edit:  Actually I just verified.  MC will not play .thd files.  Comes up with error "Media Center Was Installed For a different operating system" when trying to add them to the play window.  Maybe a bug?

Plays the files just fine once file type is changed to .mka (Except I think Gapless does not work?  Have to verify that), so not sure why it won't play them as .thd files.

Carl

[jctcom]

Media Center does not support writing tags to .mka files at this time.

Additionally, just renaming a file does not change its type and add additional capabilities to it, the actual format is what matters.

Hi Hendrik.

Can you take a look at my last post?  Is MC supposed to be able to play .thd files?

If not why would that be when it plays the same files as .mka files (after changing the extension)?

Thanks.

Carl.

[jctcom]

So I am better to just leave them as .thd?  Will Media Center play those?  Also I don't think .thd will ever be taggable where as I think some programs already can tag .mka?  Maybe Media center will be able to save their tags down the road?

Carl.

Edit:  Actually I just verified.  MC will not play .thd files.  Comes up with error "Media Center Was Installed For a different operating system" when trying to add them to the play window.  Maybe a bug?

Plays the files just fine once file type is changed to .mka (Except I think Gapless does not work?  Have to verify that), so not sure why it won't play them as .thd files.

Carl

Can I please get a verification on this?  Is Media Center not compatible with .thd files?

Thanks.

Carl.

[Hendrik]

Well as you have seen yourself, MC can play these files, as you have found out by renaming them. As I've mentioned before, renaming them does not change the structure of the file. The name is often meaningless, and may just be used to link to the right application, so giving it any name that MC knows as audio would make it work in this case.

I do not know what format those thd files actually are in, however. Maybe raw truehd? That would be a terrible format, audio should never be "raw". Maybe mp4 or mka with a weird name? Who knows.

Unless its some variant of mp4, its unlikely we'll be ever able to tag them. I can teach MC about the file extension, so playback works without renaming, however.

[jctcom]

The files are created by using DVD Audio Extractor and setting the export type to "Direct Stream Demux" which for music Blu-Rays and the TrueHD Atmos tracks creates the files with the .thd extension.

This is the only way I have found to create individual tracks with the TrueHD and Atmos components intact.

It may indeed be a "RAW" file as you suggested but I don't know of any other way to extract the Atmos audio tracks so I can add them to my library and play them as individual tracks with TrueHD and Atmos intact.

btw what is the reason why we should not have "RAW" versions of audio files?

Carl