Right-click the application icon, go to Properties > Compatibility , and set it to run for "Windows XP (Service Pack 3)".

While the software defaults to MPEG-2 for DVD compatibility, ensure your system has updated codecs installed. This helps the software's internal engine process colors and gradients more accurately. Compatibility in the Modern Era

Note: As the original developers have moved on to other projects, it is vital to keep a backup of your license key in a secure digital vault. Achieving "Extra Quality" Output