Sometimes when I attempt to transfer music files to my compter's music folder I get a "unexpected error" message that say "the directory or the file cannot be created."
What causes this and how do I solve it?

Try creating a subfolder within your My Music folder and see if that makes any difference.

If not we need more info.

Transferring from where??

What OS do you have??

What version LW are you using??

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I Don't Suffer From Insanity, I Enjoy Every Minute of it

I think that's gonna work. Although you're a Cowboys fan, I gotta thank you for the quick and accurate response.