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IDProjectCategoryView StatusDate SubmittedLast Update
0021787MMW 5Tagging / organizing (properties / auto-tools)public2025-09-28 09:092025-10-02 07:26
Reporterpeke Assigned To 
PriorityurgentSeveritymajorReproducibilityalways
Status resolvedResolutionreopened 
Product Version2024.2 
Target Version2024.2Fixed in Version2024.2 
Summary0021787: Extended tags: Binary extended tags are read as String
DescriptionUser supplied sample files that contain special extended tags from iTunes and MM do not read them correctly eg. read them as String while it is binary file file

Format is:
Tag name: UFID<FILENAME/URL> (4 CHAR "UFID" as metadata tag name, followed by Filename/URL where it is generated/downloaded)
Tag Data: Binary Data
Steps To ReproduceUse sample files from https://www.mediamonkey.com/forum/viewtopic.php?t=108570 (copy uploaded to FTP)
TagsNo tags attached.
Fixed in build3168

Activities

peke

2025-09-28 09:10

developer   ~0079643

07-info.txt (3,533 bytes)    
ExifTool Version Number         : 13.37
File Name                       : 07 Fooled Around And Fell In Love.m4a
Directory                       : .
File Size                       : 21 MB
File Modification Date/Time     : 2025:09:20 07:04:19-05:00
File Access Date/Time           : 2025:09:26 09:29:02-05:00
File Creation Date/Time         : 2025:09:21 16:20:07-05:00
File Permissions                : -rw-rw-rw-
File Type                       : M4A
File Type Extension             : m4a
MIME Type                       : audio/mp4
Major Brand                     : Apple iTunes AAC-LC (.M4A) Audio
Minor Version                   : 0.0.0
Compatible Brands               : M4A , mp42, isom
Media Data Size                 : 20701999
Media Data Offset               : 16384
Movie Header Version            : 0
Create Date                     : 2024:11:04 13:08:01
Modify Date                     : 2024:11:04 13:08:13
Time Scale                      : 44100
Duration                        : 0:02:59
Preferred Rate                  : 1
Preferred Volume                : 100.00%
Preview Time                    : 0 s
Preview Duration                : 0 s
Poster Time                     : 0 s
Selection Time                  : 0 s
Selection Duration              : 0 s
Current Time                    : 0 s
Next Track ID                   : 2
Track Header Version            : 0
Track Create Date               : 2024:11:04 13:08:01
Track Modify Date               : 2024:11:04 13:08:13
Track ID                        : 1
Track Duration                  : 0:02:59
Track Layer                     : 0
Track Volume                    : 100.00%
Matrix Structure                : 1 0 0 0 1 0 0 0 1
Media Header Version            : 0
Media Create Date               : 2024:11:04 13:08:01
Media Modify Date               : 2024:11:04 13:08:13
Media Time Scale                : 44100
Media Duration                  : 0:02:59
Media Language Code             : und
Balance                         : 0
Audio Format                    : alac
Audio Channels                  : 2
Audio Bits Per Sample           : 16
Audio Sample Rate               : 44100
Handler Type                    : Metadata
Handler Vendor ID               : Apple
Title                           : Fooled Around And Fell In Love
Album                           : AM Gold: 1976
Genre                           : Rock
Disk Number                     : 1
Content Create Date             : 1976
Compilation                     : Yes
Play Gap                        : Insert Gap
Encoder                         : iTunes 12.13.1.3
Volume Normalization            : A80 B53 52B8 3E89 143CE 14272 7FFF 7FFF D56C 2CE5
Artist                          : Elvin Bishop
Album Artist                    : Various Artists
Composer                        : Various Artists
Rating Percent                  : 100
Track Number                    : 7
Disc Number                     : 1
iTunes CDDB IDs                 : 22++
UFIDhttp://www.cddb.com/id3/taginfo1.html: (Binary data 75 bytes, use -b option to extract)
Replay Track Peak               : 0.999969482421875
Replay Track Gain               : -6.09000015258789
replaygain album gain           : -5.76999998092651
Cover Art                       : (Binary data 109064 bytes, use -b option to extract)
COVERARTTYPE1                   : 3
Part Of Set                     : 1
Shared User Rating              : 99
Avg Bitrate                     : 928 kbps
07-info.txt (3,533 bytes)   

peke

2025-09-28 09:14

developer   ~0079644

image.png (18,087 bytes)   
image.png (18,087 bytes)   

michal

2025-09-29 14:16

developer   ~0079648

Last edited: 2025-10-02 06:53

 I analyzed given files and the tag is read correctly. Problem is in the SW, which wrote these metadata. All files have data type of "UFIDhttp://www.cddb.com/id3/taginfo1.html" set to "0x00000001", it means text! That is why all SWs I tried display the same mess - MediaInfo, VLC, MP3Tag. We do not support unknown binary extended tags (how to display and edit binary data?), such are ignored by MM, but in this case the tag in files is set as text, so it is processed and displayed as text. I do not see any bug on our side.

michal

2025-10-02 07:26

developer   ~0079680

Fixed in build 3168. MM will ignore all "UFID<owner>" tags within iTunes tags in MP4-like files, to avoid corruption, as it seems these are binary data, but often marked as standard text tag.