To whom it may concern...
Since Digiarty Software provides no means to report bugs other than by sending a generic email to support, hopefully they read this forum.
Here's a bug:
With Mac OSX 10.11.1 (El Capitan) and WinX DVD Ripper for Mac (for at least versions 4.5.7 through 4.5.9), the software will only work from the Applications folder. If the app is moved to another folder (for example, I usually put it in a folder called Video inside the Applications folder), it no longer works.
With OSX 10.10.x (Yosemite), it worked just fine from another folder.