Hi, Kimberly, welcome to Apple's user-to-user discussion forums.
The checkmarks mean the same thing in the Library and in playlists. These are the songs that will get played. Songs without the checkmark will not be played. As you mentioned, checkmarked songs in playlists are also the ones that will get burned to cd.
Command-Clicking in a checkmark box will either checkmark everything or clear all checkmarks, depending on the state of the box you clicked on.
You can also make a selection of songs, Control-Click on the selection, and choose Check (or Uncheck) Selection.
So you can use the checkmarks to control which songs you want to listen to either in a playlist or in the Library.
The checkmarks mean the same thing in the Library and in playlists. These are the songs that will get played. Songs without the checkmark will not be played. As you mentioned, checkmarked songs in playlists are also the ones that will get burned to cd.
Command-Clicking in a checkmark box will either checkmark everything or clear all checkmarks, depending on the state of the box you clicked on.
You can also make a selection of songs, Control-Click on the selection, and choose Check (or Uncheck) Selection.
So you can use the checkmarks to control which songs you want to listen to either in a playlist or in the Library.