where to find blank disks for denon dcr-w1500

my name is Rip Van Winkle.I`ve been asleep for sometime, and finally awoke with this Denon dcr-w1500 recorder in my arms.would anyone know where I my purchase blank cd-r`s that are compatable with this obsolete player of which, by the way, had recieved great reviews.the manual points out specifically that cd-r`s&cd-rw`s for "digital audio" are to be used.so, I figure that cd-r`s for recording on pc`s would be incompatable for this recorder because of the faster recording drives being used now.let me also point out, the manual is vague as to what speeds it will record i.e.-normal speed and fast speed.