Followed your instructions using a Verbatim DVD-R DL! This copy was not recognised by my Pioneer DV-535 unit but played perfectly in my real cheap XMS unit?? When I started the burn I tried to use Imgburn Version 1.2.0 but it came back with an error message about not being able to do a layer change with a -R DL disc mentioning something about DAO!! so I had to revert to Version 1.0.0. Can you please explain to me what is going on and what type of blanks should I use when making DVD backups +R, +R DL or -R, -R DL. This exercise has cost me more than the purchase price of the DVD I am trying to backup, but who is counting I just want to learn this black magic!! Also I forgot to state that this DVD is a NTSC zone free with no CSS protection?? well that is what AnyDVD tells me. With this info is there another way I could have approached this task!!?? Thanking you in advance for putting up with me.