Be wary of using the describe function in LW's Library window. If your files are intended for WMP, then WMP may not be able to play them. LW are aware of this problem (wmp can not read compressed id3 tags like most other audio programs can). So an update of LW will fix this issue. Or instead, use a different audio player.

BTW for quick access to your LW download folder: go to your LW Library window, select Saved Files folder & press the Explore button. Sample image here: Using Library Explore button to access downld folder (click on link) & the folder will open up for you.
In fact, hold your cursor over the Saved Files folder in LW's Library & it will show the location.

Also keep in mind that WMP is a reference player. It is a playlist player. It points to where the song is. If the song file no longer exists in that location, then the player (WMP) won't be able to find or play it.