UMD Format Made Public

- The Universal Media Disc media format, more affectionately known as UMDs, which the PSP uses has now been approved as an ISO optical disc standard by Ecma International, with the title ECMA-365.
- There are two types of UMD out there - Type A (0.9GB) and Type B (1.8GB), details of which can be found at the Ecma International UMD Specifications page.
- This means the UMD Media Format is now out in the public domain so anyone can get the 95-page PDF spec list from the above link to work out the magic behind UMDs! Unfortunately I see this leading to counterfeit games hitting Asia in the not-so-distant future.