Step 1: Download this best Mac Blu-ray ripper and install it on your Mac.

Step 2: Load Blu-ray Disc(BD) with Mac Blu-ray ripper.
Import Blu-ray Disc(BD) to Mac Blu-ray ripper after launching the program.

Step 3: Select the output format and the output path.
You can Rip blu-ray into any other popular audio and video formats like AVI, ASF, MPEG, MP4, WMV, MKV, MOV, FLV, SWF, RM, 3GP, AAC, AC3, MP3, OGG, WAV, WMA, M4A.
Step 4: Trim effect.
You can trim the Blu-ray Disc(BD) to shorten the length of Blu-ray clips by setting the start and end time.

Step 5: Start Conversion.
Convert Blu-ray Disc(BD) with this Mac Blu-ray ripper program.

Done!!