Patch 1 for TREC video 2004 reference segmentation and keyframes. This patch corrects a minor bug in the reference segmentation and keyframes: 7 keyframes scattered in 5 files received a -1 frame number. Reference Segmentation: The "shots2004" and "subshots2004" directories contain the updated reference segmentation for the 5 files containing errors. Keyframes: The bug does not affect the set of keyframes in the "keyframes" directory (since these are given names and not numbers). The "rmcp1" script updates the "jpg" directory from the "keyframes" directory by removing the "-1.jpg" images in "jpg" and replacing them by their copy from "keyframes". (I remind that "jpg" and "keyframes" directories contain the same set of keyframes simply named in a different way). Georges Quenot. 22 july 2004.