Right, got a different NAS now, the D-Link DNS-320, and guess what, same problem. I've set the NAS up exactly as recommended, but LMCE still does not have permission to write to the NAS (live TV will not work).
I can fix the problem temporarily by doing a "chmod -R 777" on the symlink for the NAS windows share in the /home/public/data/pvr folder, but this does not stick after a reload or a restart.
What is the problem here? Is there any way I can permanently fix this? Can I permanently give LMCE permission to write to the NAS?
How are you trying to write to the nas? Are you ripping a disc, browsing to \\dcerouter from a pc, kde, etc?