I always use Sony DVD-R discs. I have had multiple successes in the past with CloenDVD. Lately, CloneDVD will read a disc and create the temp files but then won't write to the blank disc. I keep getting an error message saying that the disc in my burner is unwritable. Then it asks me to insert a writable media which once I do, nothing happens. The only options in the in the error dialogue box is "cancel" and "eject". The blank discs I'm using are brand new and right out of the container.