unknown artist everywhere in UI

[joshvito]

I took the time to organize all my music in a folder structure of the following.
artist > album > songs (mp3, wav, flac, etc)

I put the above on an sdcard and added it as the library source for USB Audio Player Pro.

When I scroll through the albums, many of the artist names are all "unknown". Specifically, the ones that are .wav type files.

How can I get the UI to use the folder structure to identify the artists for these files?
I used a tagging program to organize the library, and confirmed the files are in the correct folders and named appropriately.

[joshvito]

No help on explaining how the software discovers artist names, etc.?

[dwrae]

Only track titles are taken from the file name if the meta data lacks a track title name. The artist info really needs to be inside the file.