Please ensure that you are using the latest versions of AnyDVD-CloneDVD by visiting SlySoft (http://www.slysoft.com).
Could you provide more detailed information as to exactly what error message you receive and exactly what process are you conducting when you receive this error?
Also could you provide the Manufacture Name/Model Number/Firmware Version of your DVD Burner?
You can use a software utility program similar to DVDInfo Pro (http://www.dvdinfopro.com) to acquire the above information on your DVD Burner.
Also perchance do you have any UDF packet writing software applications installed? The flowing are examples of packet writing software programs â€“Drag-To-Disc, Direct CD, InCD, DLA (Drive Letter Access), CE Quadrat Just!Burn, File CD, Sony abCD, InstantWrite, Backup4all, B's CliP, NeoClip. Packet writing software applications are very problematic, cause numerous conflict errors, and frankly donâ€™t work as advertised. Strongly suggest removing any and all packet writing software applications.
Items that have proved to be problematic when running in the background while Burning a DVD are some Anti-Virus Programs, Peer-To-Peer File Sharing Programs, and Surfing the Internet. Burning a DVD is a demanding task and it is just wise and prudent not to be multi-tasking when Burning a DVD.