On the left of the text box under target file, click on the three dots icon.On the window that appears, look for the FLV file that you want to convert.On the window that appears, click on the three dots icon to the right of the text box under OBS Recording.From the dropdown list, click on Remux Recording.On your OBS application, click on File in the upper left corner of the top menu.But you can convert the file when you’re done recording. This is because FLV recordings won’t delete the entire file when it crashes, unlike when the recording is done on MP4. When using OBS, the acronym for Open Broadcaster Software, a popular streaming program, recording files on the FLV format is recommended. Fortunately, there are ways to convert FLV to MP4, and we’ll detail the popular methods in the article below. For those with lots of videos recorded as FLV, this may present a problem.