I'm having difficulty making a backup copy of my 5.1 dvd. My dvd drive is DL +/-R capable, I'm using DL (TDK) DVD +R media and nero express 7 software.
I've tried a copy using the copy DVD function with verification enabled. and I've made a copy by coping all the files to a subdirectory and then making a data DVD. Both methods appear to complete with no errors however, when I put the dvd into the unit - it states it can't read the dvd - contact dealer. Putting the original in fixes the error. I know some of you have successfully made a copy. What's the trick? I following the instructions found on the club lexus site but the device doesn't read the dvd ....

I want a copy because of the Nov 14 TSB outlining the changing of the DVD media. My unit is working fine but falls into the VIN dates, but I agree with one poster that states that this a great way for toyota toreplace the 5.1 disks in order to eliminate the overide function.