Wont allow songs

Question

I go to the windows media program to put on music and I get a song in the sync colum and then I get this message:
Windows Media Player encountered a problem while synchronizing the file to the device. For additional assistance, click Web Help.
then I do click help and get this:
You've encountered error message C00D1236 while using Windows Media Player. The following information might help you troubleshoot the issue.
So pretty much no help. Then i try to reset it. I guess it is resetting but not sure and I don't know what to do.Help!