Syncing with Windows Media Player

I have used other programs with my MP3 player that allow me to simply add music. I started to use Windows Media Player 11. From what I can find, when I want to add music, Media Player will sync my hard drive and my player. If I am adding new music to the player, but had deleted some music from my hard drive, WMP will add the new music and also delete from my MP3 player the music that has been deleted from the hard drive, so both drives "match" one another. So they are in Sync. Isn't there anyway to just add music and not have to go through this syncing nonsense? What I am doing now is to time the "download" and stop the sync as soon as the new music is added. I have looked and looked but I cant find an answer.

 

Turn off auto sync Windows Media Player 11:
With the device connected to your computer:
From within Windows Media Player, click the arrow below the Sync tab, point to the name of the device, and then click Set Up Sync.
Device Setup dialog box appears.
Remove the Check Mark by 'Sync this device automatically'.
You should then be able to use the Add and Remove buttons from within WMP, and not have to hurry out of the program.