I get a message from the media playing stating that "Windows Media
Player cannot play the DVD because a problem occured with the digital
copyright protection" I have installed a DVD palyer, Power DVD, that
playes DVD's fine but the Windows Media Player just gives me this
error and will not play DVD's. Any suggestions besides installing a
DVD player. Also I have uninstalled Media player and reinstalled it
and gotten all the updates.

Are you trying to play a copied back-up CD? Some programs won't
recognize copied CDs or DVDs as a copyright protection measure. Given
Microsoft's stance on intellectual property and copyright protection,
I can see this easy.

If the DVD is an original copy it sounds like it might be a bug.

Which are you using?

hey,
I have two solutions for you :
1. Try another player called VLC.
you can find it here :
http://www.videolan.org/vlc/

if it doesnt work then :
2. you may need a codec pack,which you can find it here :
http://www.free-codecs.com/K_Lite_Codec_Pack_download.htm

the newer version of codec pack you choose - the better,since of codec's update.
You can try this direct link of k-lite codec pack 2.65 full here :
http://www.free-codecs.com/download_soft.php?d=1226&s=95

good luck :)