What does it mean: "NO AP"?
What files did you or did the LG RT added "as individual albums"?
Why do you complain missing artwork?
The given test files have no embedded artwork because they have only the ID3v1 tag-type.
Therefore and because of the generic values in the given tag-fields, the SPRINT service, if you did not switch it off, cannot find any artwork because of the generic values in the given tag-fields.
The test bed is still on the step where artwork is not the theme.
First of all we need to understand the working of the LG RT, how this device work internally with the given music files.
If the LG RT for itself is able to organize files by their tag-field content, then the given test files should be result into:
- Artist List with four Artist names: AAA, BBB, CCC, DDD.
- Album List with four Album names: Album 1, Album 2, Album 3, Album 4.
- Genre List with three Genre names: Blues, Jazz, Soul.
If you can confirm this result, we could trust the LG RT to work as one might expect it, and we would know for sure, that the LG RT is able to work with ID3v1 tag-type.
The next step would be to use test files having only the ID3v2.3 tag-type to proove the ablitiy of the LG RT working with this tag-type.
Your feedback statements are not satisfying enough to go to a next step.
There is missing a Mp3tag screenshot of the "BT" test files, after transfering them to the LG RT disk drive.
There is missing a detailed description how these files have been treated by the LG RT in terms of organizing into lists of artists, albums, genres.
You give me no chance to help you out of the jungle, if you do not follow a systematic analytical way.
It might be useful for you to search for and contact a LG RT user group.