1619 CD-ROM/XA (eXtended Architecture) CD-ROM XA (Compact Disc - read-only-memory, extended architecture) is a modification of CD-ROM that defines sectors that enable it to read and display data, graphics, video, and audio. Photo CD, Video CD, CD-EXTRA and Super Video CD have all been based on CDXA and it may be possible to further distinguish between these different CDXA variant formats with further PRONOM research. 1 Digital Preservation Department / The National Archives 11 Dec 2015 08/2023 (v.113) - Added priority over fmt/1886 (Resource Interchange Format (RIFF)). Submitted by New York Public Libraries and Preservica. 14 Aug 2023 fmt/819 PUID dat File extension 1176 CDXA BOF: RIFF{4}CDXA 1 Absolute from BOF 0 0 52494646{4}43445841 Has priority over 2741 Resource Interchange File Format (RIFF)