Just installed 12.04 on my new Packard Bell laptop. Trying to set up media playing stuff, installed ubuntu-restricted-extras, libdvdread4 and vlc. But DVDs won't play. No error message with vlc - it just won't play. If I try totem, I get message:

An error occured
Could not read DVD. This may be because the DVD is encrypted and a DVD decryption library is not installed.
Any ideas?