Take Still Frame from Quicktime Window

1. Pause on the frame you want
2. Press Command + Shift + 4, then spacebar.
3. Cursor will change to a camera. Click on Quicktime window.
4. File will be saved to desktop.

Ripping Blu-Ray to Audio-Only Files

1. Open Makemkv. Convert Blu-Ray to MKV.
2. Open Handbrake.

a.     Set type to MKV

b.     Set audio to FLAC

c.     Rip each chapter separately (will require a new filename per track

3.     Open Audacity

a.     Export audio for each file