To record replays I use OBS Studio (https://obsproject.com/). It is a really easy to use, open source software that allows you to capture and record replays in HD with an intuitive interface.
Here are the features that I like the most about OBS Studio:
High Definition Recording: OBS Studio offers a full HD recording experience, with both 1080p and 720p resolutions available.
Multi-Platform Support: You can install OBS Studio on Windows, macOS, and Linux, making it a great choice for any serious replay capturer.
Effortless Scene Transitioning: OBS Studio’s scenes feature allow you to quickly and seamlessly transition between in-game events, making your replay recordings look polished and professional.
Powerful Mixing Features: OBS Studio has advanced recording and mixing features to help you mix audio between multiple sources with ease.
Plug-in Support: You can extend the features of OBS Studio with various plugins and extensions, so you can tweak the recording experience to suit your needs.
Overall, I think OBS Studio is one of the best replay recording software on the market. If you're looking for a powerful and easy to use recording solution for replays, this is the software for you.