Over the past week we've been compressing our Blu-ray library to save space on our 8TB Seagate Ironwolf NAS drive. After around 8 months we managed to almost fill the drive, the vast majority of space being taken up by MKV files created from our Blu-ray library. A solution was needed, and buying a new larger drive wasn't an option at this point. Enter Handbrake-cli, the command-line version of the popular DVD-ripping and compression program Handbrake. Initial tests showed positive compression results with very good quality at 1080p using the h264 codec. After a week of compressing our library we have the results from 18 files we've compressed over this period.