Error: [Insert] returned 0xC00D2779

I have been successfully transferring OverDrive WMA Audiobooks to my Sansa clip 2GB for over a year.  Yesterday when I tried I received the error message: Unable to transfer the selected title because [Insert] returned 0xC00D2779.  I can hear the audiobook on my PC just not transfer it to the Sansa.  I tried reformatting the Sansa and restoring the setting but it did not make a difference.

I did update my free AVG anti-virus software last week if that makes a difference?  Greatly appreciate any advice of how to fix this.

Thanks.