You can open the folder AVCHD>BDMC>STREAM, drag the .mts or .m2ts file to Filmora.
Or directly Import Media Files and choose all the videos under AVCHD>BDMC>STREAM.
- Right-click the AVCHD file, choose show in folder
- Open the .BDMV folder
- Open the STREAM folder
- Drag the .mts or .m2ts file to Filmora
Note: AVCHD is a folder format produced by Sony and Panasonic for the digital recording of high-definition video. Usually, the AVCHD video file has an extension of .mts or .m2ts, and saved in /PRIVATE/AVCHD/BDMV/STREAM folder.