Hi JohnC1,
The PlayMemories Home software is compatible with the Mac OS X 10.11 or El Capitan. You can download the latest version of the program here. Are you having issues or errors when downloading the software? Any additional information would be helpful for us to provide you with the proper resolution.
NOTE: Errors may occur due to security programs blocking the installation, we recommend contacting Apple Support for further assistance.
If my post answers your question, please mark it as "Accept as Solution". Thanks_Mitch