My DVD's are unreadable and always crash on verification. This problem is apparent from the number of complaints on this site. As I use both DVD-R and DVD+R I have isolated the problem to the fact that the programme does not identify the +R disc as a DVD when writing to the blank therefore it is not recognised by the DVD player. The big problem for me appears to be copying a ZOOM recording converted to MP4 (by ZOOM) It works fine on-R blanks. Yes I know the coding is missing from the +R blanks but surely this is an easy fix in the software to determine the blank put in, the required output them write the data required?