For those of you who are looking to get your Sony ICD-PX720 voice recorder working under Windows 7 or above, no doubt you have probably stumbled upon this post.
I’m glad to report that I have found success when faced with this issue myself.
The problem: Sony have replaced the original software that came with these devices with an newer software program, however, the new software neither works with the recorder, nor does it contain the drivers necessary to use the device on Window 7, 8 or 10.
The solution: After several hours of searching, I came across this post on the Microsoft forums from another frustrated owner. A responder to that post links to a installer for the original software which both supports the device AND includes the all-important drivers. As the download is still hosted on the Sony servers, there’s a good chance that the link may not work forever, and will eventually be taken down given that Sony do not want to support the older software any more. For this reason, I have mirrored the download here. Just download and install as you would any other program, and then plug in your device. If you find that it does not automatically install the driver, you can manually browse to it’s location in the folder:
C:\Program Files (x86)\Sony\ICD-PX Series Driver\
Feel free to comment if you need any further guidance getting this working. I have successfully tested it on Windows 7 Pro x64 and Windows 10 Pro x64.