How to sort files by packaging size.
I am not sure what you mean by "packaging size".
A way to sort files has been described here:
and here is a list of variables to address various properties:
Which one do you want?
Google translate probably translated it wrong. I want to sort music files by the size of the album cover image.
The picture has to be embedded.
You find %_cover_size% as one of the properties in the linked documentation. It refers to the first embedded picture.