1) Prefix with version 2) Version opening 
Association 'exstrophie vésicale'. Vereinigung 'Blasenexstrophie'. Associazione 'estrofia vesciale'
A video clip, often short, used at the end of a disc. Some common extros are 'change Disc' clips for multidisk volumes or credits. On a VCD you should ensure the length of the clip is at least 4 second for compliance with the specification.