Hi and thank you for the quick response to my question and the friendly hello.
I was under the impression that the disc's that I was using were DVD-RW, the are actually DVD+R discs.
As for the packer writing, I was using Microsoft's burning software that is in my Win 7. It said in a pop up that if I wanted to use this disc in other machines and if I wanted to be able to remove information at a later time, then I had to use this one format.
I didn't know at the time that it was packet-writing. Thank you for the link to Wiki, I learned something new today.
Roxio came with the system, I've used it once but didn't like it that much. Makes me wish I still had my old Nero Burning Rom software.
Thank you both again for your help.
Cormac