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Old 17th December 2018, 08:14   #35
MrSinatra
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odd Q for you...

i noticed an issue where windows explorer, for any m4a, could have data divergent from "normal" atom tags and i couldn't understand it. the answer seems to be that windows uses "normal" atoms, but ALSO creates a custom moov.udta.Xtra atom and sticks a data blob in there, with what i believe is a WMA style WM tag; odd & bizarre, but NOT out of m4a spec. among the fields win exp uses in this blob, is one for ratings, that win exp can see:

https://community.mp3tag.de/t/no-sup...-m4a-mp4/15671

http://www.mediamonkey.com/forum/vie...hp?f=1&t=76321

http://forums.winamp.com/showthread.php?t=376798

this i think is relevant to you (& me!) if say you have a rated FLAC, and you want to transcode it to ALAC m4a, b/c you want the tag info to also go with the transcode.

Media Monkey solved the issue years ago, (i reported it), by basically updating/saving both sets of tags simultaneously. yes, its duplicative, but it keeps info from being divergent and it also makes the info exposed in windows explorer:

http://www.ventismedia.com/mantis/view.php?id=12017

any chance you could fool around with this and get it to work with your plugin?

also, i think the media monkey solution needs to be adopted by winamp as well, esp for the ML, so that ratings and other tags don't become divergent.

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