How do you install PS1 games on the PS3?

PlayStation 1 (PS1) games can be downloaded from the PlayStation Store onto the PlayStation 3 (PS3). Some PS3 consoles are also backwards compatible, which allows players to insert original PS1 discs directly in the console.

For backwards-compatible PS3 consoles, there is no need to install the games onto the hard drive as long as the discs are present. Players who do not own backwards-compatible consoles have access to a library of PS1 games through the PlayStation Store. These games are digital copies and must be purchased directly through the console's store. Once purchased, the store prompts players to download and install the game to the console itself.