: If you only want a "One Game One Rom" (1G1R) set—which filters out duplicates and regions you don't need—you can typically fit a curated "best-of" collection on a 256GB or 512GB SD card . Popular Formats and Compression

Despite legal hurdles, the demand for PSX full ROM sets is driven by legitimate concerns:

In the modern era of terabyte SSDs, the file size seemed modest, but the cultural weight was massive. It was a library containing thousands of worlds. Within that folder lay the jagged, low-poly DNA of modern gaming. The set was organized with obsessive precision:

Many veterans of the scene suggest using a approach. Instead of having five different versions of Crash Bandicoot (USA, Japan, Europe, Demo), you keep only the best version for your region. This drastically cuts down the storage space needed and makes your library much easier to browse. Where People Find Them