Then you need to turn to a video converter software for Mac can do this.
You have to convert AVCHD to MOV format to play with QuickTime Player. The QuickTime Player application is incompatible with AVCHD files sometimes. Best AVCHD Converter and Player for Mac: Play AVCHD Files on Mac with QuickTime Recommend Other 5 AVCHD Players to Open AVCHD on Mac QuickTime: AVCHD Player for Mountain Lion or Later This article will show you how to fix the AVCHD compatibility problem on your Mac with the AVCHD player. You can't import and watch AVCHD videos on MAC like iMovie or Final Cut Pro. However, when you click on AVCHD MTS files on your Mac, you may fail to play them (it depends on what operating system you're using). Some camcorder and camera models also record AVCHD files to a removable memory card so that you can access AVCHD video files via a card reader. And AVCHD video files (.MTS) can usually be accessed via a USB cable connecting your device and your Mac.
AVCHD is a universal high definition video format for recording video with digital camcorders and digital cameras.
