Thanks for pointing out that limitation with UPCE, as the hyphen is needed in I am trying to do I have switched to the Code 39 code, as it supports symbols and does not require a checksum. I guess I should have done some research on the different kinds of barcodes.

As for strict and warnings, yes I am already using them I guess I should have said that, the code I posted is just a small portion of the whole script. Only pasted the code that is giving me trouble