No I mean when I'm burning a group of files such as a bunch of mp4s. Basically once they're safely burned onto the back up media (M-Disc blu-rays) I delete them from my hard drive, but I jumped the gun last time and I deleted some before IMGBurn had got to them, though they were listed in IMGBurn's jobs manifest. My fault, no doubt, but the ability to lock all files until they are successfully burned and verified would have saved the day for me. Lesson learned, but this feature could save other bone head idiots like me, and it seems like a pretty simple feature to add (if IMGBurn's author still does updates anymore).
Amiga5000