strstruckdreamr9

when i search "cdrom," the only thing i see is imgburn. when i search my E and F drives, about a million different things pop up! how do i find what is "holding" my drive?

Hi everyone. I'm a new ImgBurn user, and I can't seem to get it to work. When I'm in the write mode, I get two error messages and the discs won't burn. The first one says, "Unable to lock volume for exclusive access. Reason: Access is denied." The second says, "Failed to reserve track. Reason: Invalid field in CDB." If anyone could please help me out, I would really appreciate it. Thanks!