Where are you seeing these 39 iTunes?
If they are in iTunes, then you should see them when you open iTunes. Do you?
Are you referring to MP3 files as iTunes?
To select more than one file at a time, click the first one, and then Shift + Click the last one. That selects all in between the two selected files.
Apple + Click will select none-contiguous files
P
Music file contains 38 iTunes. Before I trash them, can you tell me how to click so I can trash them all at one time? (Never could figure that one out...lame, I know.) I am standing by.

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