The .rar extension indicates the PKG file is compressed. You would need to extract it on a PC before it can be used.
The "DLC" tag indicates this specific file is for Downloadable Content (add-on packs) rather than the base executable itself. Content like the "Invincibility" mode or "Display Frames"
Content like the "Invincibility" mode or "Display Frames" sets. Usage & Safety Note Capcom Arcade Stadium is a modular collection of
Official PKG files are typically downloaded directly from the PlayStation Store . If you found this on a third-party site, it is often intended for use on consoles with custom firmware (jailbroken) . File Identity: Capcom Arcade Stadium
Capcom Arcade Stadium is a modular collection of classic arcade games. While the base application is often free to download, individual games or packs must be purchased or added as DLC. Based on standard naming conventions for this title, CASROM0053 likely refers to a specific retro title within the stadium, such as:
This specific filename refers to a file, which is a package format used for installing games and digital content on the console. File Identity: Capcom Arcade Stadium