It's a limitation of the file size. NTFS and exFAT can record up to 4GB per file. So with higher bitrates you get shorter videos per file.So just about every time I'm taking a video at 3 minutes and 16 seconds it stops and restarts recording.. so if I were to take a 4 minute video... I would get a 3 minute and 16 second video and an additional 84 second video. Am I missing a setting somewhere??