video recording

After recording a 22 min 4k video on the SD card, then uploading to my computer I found 5 files 4 at 5min each then 1 at 2 min. How can I change this to 1 file 22 min long? Sorry for the dumb question but I just got my typhoon h about 1 month ago. Thanks.

I've been having 2 big issues lately which I hope anyone here can shed some light on. Both may be related. #1 Video signal loss: Video signal feed seems to freeze quite a bit since the latest firmware update. It seems to play catch up then work fine, then have a freezing/buffering type effect...