Your purchased key is meant to remain valid even if you upgrade to newer versions.

Handles damaged CD/DVD/BR, HDDs, SSDs, and USB sticks.

Added F8 for settings, Ctrl+Shift+Q for IBP/IBQ manager, and enhanced image file processing.

If you are facing issues registering your version or have lost your license, it is recommended to contact support directly through their website.

Supports scanning for missing files and folders (using "Find missing files and folders" via right-click).

You can use the free version to scan and see if files are present; if IsoBuster cannot see them, the Pro version won't necessarily find them either.

As noted by developers, using "not so legal" keys found online may result in the software disabling registration functionality.

IsoBuster 3.8, released in June 2016, is a robust version for recovering data from damaged optical media (CD/DVD/BD) and various image files. The professional/paid version is highly recommended for full data extraction capabilities, as the free version may not unlock advanced recovery options needed for severe, non-finalized, or corrupt discs.