- RCO - File containing icons, text and sound that appears on XMB. Cannot be replaced by a theme.
- Remote Play - PSP, PSVITA, PC or phone used as sound/video monitor and controller. Only compatible with select games.
- Repository - A storage location from which software packages may be retrieved and installed, sometimes used as a software archive
- Revoke - To void the validity of ...
- RE - Reverse Engineering
- RIV - Reset Initialization Vector (aka Reset Vector)
- RLOD - Red Light Of Death.
- RSOD - Red Screen Of Death.
- RSX - Reality Synthesizer, the Graphics Processing Unit of the PS3.