have a Toshiba D-VR16 Video/DVD Combi and am suddenly having problems recording from DVD. For some reason the message "Recording Error - Cannot Record on this Disc - E4 54040990" is coming up whenever I insert a new blank dvd. The owner manual states "Cannot Record on this Disc" appears if
using the wrong type of disc, however, I am using the same type of disc I have used without any problems since purchasing the machine two years ago.
I have also checked that it is not a box of faulty discs by using discs
from two different boxes but am still getting the message. It allows me to record from a previously used disc which I have cleared and reformated.

Any ideas appreciated. Thank you.