A TMD file isn’t a single unified type, as its role is dictated by the software that created it rather than the extension itself, and `.tmd` is used by multiple unrelated systems where the file usually serves as metadata that lists other files, their sizes, versions, and verification details, so it generally isn’t something end users should open or edit; a major example is within Sony’s PS3, PSP, and PS Vita platforms, where TMD stands for Title Metadata and holds identifiers, version info, size values, security hash data, and permissions used by the console to validate content, stored next to PKG, CERT, SIG, or EDAT files and required for proper installation and operation If you loved this article and you would such as to receive even more info regarding TMD file online tool kindly check out our web-page. .