burned some back up discs before a defrag

[Sossity]

Before I burn or back up my movie & photo files to a data DVD disc, do I need to defrag my external hard drive each time? I have already burned some back up discs without def ragging, had done it not too long ago, are these discs ok? are they fragmented? I want to use these for restoring my data to a new drive if mine fail. or should I reburn them after defragging my hard drive?

 

Sossity

[LIGHTNING UK!]

It makes no difference to the actual files on the cd/dvd.