SeaRover2017 ROV (Remotely Operated Vehicle) Holland (Marine Institute, Ireland) underwater video files collected during SeaRover 2017 research cruise onboard Irish Lights Vessel Granuaile between 4 July 2017 - 21 July 2017. SeaRover stands for Sensitive Ecosystem Assessment and ROV Exploration of Reef. This survey was commissioned by the National Parks and Wildlife Service (NPWS), funded by the European Maritime and Fisheries Fund (EMFF), and coordinated and led by INFOMAR (Integrated Mapping for the Sustainable Development of Ireland?s Marine Resources) and Ireland?s Marine Institute. During processing videos for each dive had been converted from Linear PCM, Apple ProRes 422, Timecode to AAC, H.264 CODEC, merged and exported at 1080 resolution. This dataset consists from 50 video files, which are stored in Marine Institute on a hard drive. The overall digital size of this dataset is 585GB. None