If you have a serial number for Sony NR 2.0, you are sitting on a forgotten masterpiece. If you don’t have a serial number, do not bother downloading the trial. You will go insane.
The serial number for this plugin is a unique 25-digit code. If you have lost your original license, you can try to recover it through these official channels: MAGIX Service Center: Log into the MAGIX Service Center sony noise reduction plugin 2.0 serial number
Are you trying to recover a for an old installation, or are you looking to buy a new license for a modern DAW? Noise Reduction 2.0 License issue - magix.info If you have a serial number for Sony NR 2