I do think its a true statement and also applies to normal CD as well.With a copy the laser has to work a lot harder hence reducing the expected life span.
How many times have you had a copy CD and it plays ok but it will nether last as long as an original disk.
Buy the way this is a back up copy from my own original disk.
Slightly off topic - friend has '03 Exec tourer which was import so sat nav is Jap. The GPS circle moves around as you drive but obviously the map is wrong. Would it work if loaded a UK map disc and where best to buy apart from dealer??
I would probably say its ok but as Dan said check 1st to be 100%.As for disks you might pick one on ebay but genuine disks don't come round that often.