Long comments in m4a files are cut off

[fiso64]

Long comments get truncated when editing tags in musicbee for m4a files. To reproduce:

1. Add an m4a file to the playing tracks list
2. Right click and click 'Edit'
3. Paste a long string into the comments section, e.g

Code

Lorem ipsum dolor sit amet, 
consectetur adipiscing elit, 
sed do eiusmod tempor 
incididunt ut labore et
dolore magna aliqua. Ut 
enim ad minim veniam, quis 
nostrud exercitation ullamco 
laboris nisi ut aliquip ex ea 
commodo consequat. Duis aute 
irure dolor in reprehenderit 
in voluptate velit esse cillum
 dolore eu fugiat nulla pariatur. 
Excepteur sint occaecat cupidatat 
non proident, sunt in culpa qui 
officia deserunt mollit anim id 
est laborum.

4. Save the tags and close musicbee, and use another tool like ffprobe to display the comment. It will be cut off.

Here's the m4a file I used for testing: https://filetransfer.io/data-package/PXr3L307#link, it's just the output of

Code

ffmpeg -f lavfi -i anoisesrc=d=240:c=pink -ac 2 -ar 48000 -b:a 256k -acodec aac white_noise.m4a

1. This does not happen in foobar.
2. bass_aac is in the musicbee directory, in case that matters

Version: 3.6.8922 P

[Steven]

it was an intentional restriction to maintain compatibility with iTunes by limiting 255 characters but i have removed the restriction
https://getmusicbee.com/patches/MusicBee36_Patched.zip
unzip and replace the existing musicbee application files

[fiso64]

Thank you. Long comments are common in mixes (for the track list), and the ones downloaded from soundcloud are in m4a format. A bit unfortunate that some of my favorites have been removed from soundcloud meaning I can't restore the track lists, but oh well.