Jaksta Media Recorder is well known as an all in one Dotsub Downloader, Dotsub Recorder and Dotsub Capture Tool and allows the downloading, recording and capturing of Video, Music and Radio.
Its easy to use Jaksta Media Recorder to record from Dotsub. Simply play Dotsub in your browser, and a copy of the Dotsub video is downloaded to your PC. You can also just drag and drop (or cut and paste) webpage urls containing videos directly from your browser and Jaksta Media Recorder will extact the video. Its as simple as that!
More detailed steps are available in the How to Download from Dotsub Guide