The only way to get true extra quality ROMs is via private communities (like Pleasuredome, Back-ups.me, or specific Reddit archival groups). These groups often distribute "Update Packs" via FTP.
Finding these servers requires a bit of "digital archaeology," as many are private or semi-private to avoid unwanted attention. Community Hubs roms ftp server extra quality
While "extra quality" is not a standard technical feature name, the phrase often refers to specialized FTP server capabilities that provide superior performance, security, and management for large file sets like ROMs. Core Functional Features Resumable Transfers The only way to get true extra quality