MusicBrainz tags should be preserved between conversions

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Check "preserve unknown metadata if possible"
2. Use MusicBrainz Picard tagger to tag .m4a files 
3. Use XLD to convert .m4a files to .flac files

What is the expected output? What do you see instead?
All of the MusicBrainz tags should be kept. Instead, they are all erased and 
MusicBrainz Picard no longer automatically identifies the files. This is 
because all of the tags are erased.

What version of the product are you using? On what operating system?
20111113 on 10.7.2

Please provide any additional information below.
None at this time

Original issue reported on code.google.com by theki...@gmail.com on 6 Dec 2011 at 8:35

[GoogleCodeExporter]

Original comment by tmkkmac on 6 Dec 2011 at 2:52

• Changed title: MusicBrainz tags should be preserved between conversions
• Added labels: Type-Enhancement
• Removed labels: Type-Defect

[GoogleCodeExporter]

Supported in version 20111211

Original comment by tmkkmac on 11 Dec 2011 at 1:29

• Changed state: Fixed

[GoogleCodeExporter]

Thanks for the update. I just checked this out and I think it is still broken. 
I used XLD to convert .m4a files to .flac files. The .m4a files had proper 
MusicBrainz tags and were recognized by MusicBrainz Picard. However, after I 
scanned the converted .flac files with MusicBrainz Picard, they were not 
recognized. They only contained the title, track number, and encoder tags.

Original comment by theki...@gmail.com on 12 Dec 2011 at 12:24

[GoogleCodeExporter]

Well, what tag?

As long as I've tested, it works. XLD preserves all mandatory tags (MusicBrainz 
Track Id, MusicBrainz Artist Id, MusicBrainz Album Id, MusicBrainz Album Artist 
Id) in ALAC files and they are written to converted FLAC files. Of course 
MusicBrainz Picard recognizes them and treats those FLACs as already matched 
files.

Original comment by tmkkmac on 12 Dec 2011 at 4:55

[GoogleCodeExporter]

Maybe it is only for .m4a files? I have attached an example. This file is 
detected properly by MusicBrainz. However, when you convert it to .flac with 
XLD, it loses all that information.

Original comment by theki...@gmail.com on 12 Dec 2011 at 9:12

[GoogleCodeExporter]

It works. I've converted your .m4a file to .flac and Picard correctly 
recognizes the tags in .flac.

Original comment by tmkkmac on 12 Dec 2011 at 9:27

Attachments:

• picard.png

[GoogleCodeExporter]

I do not have "automatically add tags if possible" checked. Is that the reason? 
I thought if I leave this unchecked it keeps the old tags and doesn't add new 
ones. 

Sorry for the confusion. Thanks for the testing!

Original comment by theki...@gmail.com on 12 Dec 2011 at 9:35

[GoogleCodeExporter]

Of course you have to check the option. If you uncheck it all tags are removed 
and no tags are written to the output files.

Original comment by tmkkmac on 12 Dec 2011 at 9:40

[GoogleCodeExporter]

I guess I was confused because the title, track number, and encoder tags were 
being written to the file. Thanks for the help and fix!

Original comment by theki...@gmail.com on 12 Dec 2011 at 9:57

[GoogleCodeExporter]

All tags (except the encoder tag) should be lost. You are still confusing 
something.

Original comment by tmkkmac on 12 Dec 2011 at 10:07

[GoogleCodeExporter]

Is there any way to get rid of the encoder tag?

Original comment by theki...@gmail.com on 12 Dec 2011 at 10:39

[GoogleCodeExporter]

No.

Original comment by tmkkmac on 12 Dec 2011 at 10:56