Strange behavior, where there is a very annoying sharp crash-like sound at beginning of tracks when burning. Weird thing is, it is not consistent across sessions, because if I close CDA (5.2d) & reopen the project, it often disappears & functions normally. I thought it might have something to do with some kind of digital copy protection, but the fact that it behaves erratically makes me have doubts. These are tracks I recorded & imported myself (previously mastered in Sound Forge 9). Using Vista 64, 8gig ram, quadcore processor.