Sorry if I wasn't clear. This isn't a copy protected disc, it's just home movies I am burning for family. I burned the first copy fine; after that I have been receiving this LOCK error that I found info on in the FAQ:
Problem:
You get an error saying 'Unable to lock volume for exclusive access'
A.K.A. 'DeviceIoControl(FSCTL_LOCK_VOLUME) Failed!'
Answer:
If the 'Reason' given is 'Access is denied' (or words to that effect)
Another program is currently using the drive. You need to find out what it is and shut it down!
I downloaded the Process Explorer as recommended and found only that DVD-43 program that I have to use because the region in my computer has been changed. I have even tried just downloading the movies to my C drive, closing DVD-43 since there is no DVD to have to read then, and burning directly from the C but I am still getting that same error. When I check the PE then, it doesn't show DVD-43, only ImgBurn so there isn't any other program showing up to cause that error.
I never got that LOCK message the first time I burned the DVD, but am getting it ever since. Any suggestions?