H.264 MICRO DVR Camera Movie
To edit SDR2 file, we strongly recommend installing software that works with SDR2 files. There are many tools known as SDR2 Online Editors, but it is not certain that they operate in a way that keeps the data contained in the file safe.
Remember, that not all of the mentioned programs will allow you to edit the SDR2 file. Additional information about the SDR2 file extension can be found here.
Definitely the best solution. Try to open the SDR2 file with one of the programs and it will see if you can edit the SDR2 file. It's safest to download the software from the developer's website. You can find direct links to the creators' websites on the subpages of each application. Examples of programs cooperating with SDR2 files, which make it possible to edit it.
And here is the full list of programs supporting the SDR2 file
Remember that many file types have a text format and you can preview their contents by opening them, for example, with Windows Notepad. However, it's dangerous, you can permanently damage your SDR2 file. If you make inappropriate changes and save the file, it may happen that you do not reopen the SDR2 file.. It is safest to use software that was created to edit files in the SDR2 format.
It seems that one of the software on the list must be able to edit the SDR2 files. Use other options if you still haven't found a way to edit SDR2. Below we found websites that help in editing SDR2 files.
Free Online File Edit Service
Copy and paste this link anywhere.