Not too familiar with the various ID’s and such so I need some clarification, please.
I have numerous files, some mp3, some AAC, and some ALAC that were convered from FLAC files. I have settings in Picard for 2.4 and UTF-16. This works great for MP3 files. They get the tag info inserted correctly and when I view them in Helium Music Manager, all looks great. BUT…
When it comes to AAC and ALAC files, nothing! What am I doing wrong? Is this just a limitation because of the file type? Please advise. Thanks kindly.
So the lower one shows an MP4 file? Or the upper one? I don’t know that player, that display is a bit confusing because it shows a label of “Multiple txxx”, while “txxx” is a ID3 thing and has no meaning for MP4. Also both show widely different set of tags, so not really possible to compare the two screenshots.
A field like ASIN on the other hand has no standard tag, hence it gets written as a free form text field. Again this is differently handled by format and players. For ID3 you have so called TXXX frames for this, Picard will store a TXXX frame with a description of ASIN. Your player seems to support reading arbitrary TXXX frames. For MP4 you could in theory use all kind of fields for it, but it has become common to store those with a prefix of ----:com.apple.iTunes:. So it would be ----:com.apple.iTunes:ASIN for an ASIN field. If the second screenshot is for MP4 it would indicate your player in general also supports this, as e.g. “Acoustid Id” is stored that way.