For various reasons suggest upgrading Win200 to SP4. Also suggest insuring that ALL drivers (Video Card, Sound Card, etc) are updated to the latest current version available. Also the default Nero installation installs the InCD Packet Writing software program, which is known to be very invasive, and can cause conflict error problems- suggest removing all Packet Writing software programs.
Also suggest reviewing the below Web Link which details how to use MSCONFIG to ensure that all unnecessary programs are not unknowingly loaded during Windows Start Up. Possibly some invasive program is unknowingly loaded during Windows Start Up, which could be interfering with the proper function of the CloneDVD/AnyDVD software programs.
Below are the Minimum requirements for CloneDVD/AnyDVD ->
An IBM-compatible personal computer with a minimum 500 MHz Pentium-class microprocessor (1 GHz recommended) and 128 MB RAM (256 MB recommended)
Windows 98/98SE/ME/NT 4.0 (SP4)/2000/XP
If you use Windows NT, Windows 2000 or Windows XP you must be an administrator to install CloneDVD 2
DVD reader and preferably a DVD writer
About 5 GB of temporary available hard-drive space is necessary to clone DVDs
IBM-compatible PC with a minimum 500 MHz Pentium-class microprocessor and 64 MB RAM
2 MB hard-disk space
Has your Computer system meet these above Minimum requirements?