When asked to assist in developing an ArcGIS 10 training video pilot for a potential client, I thought a perfect topic would be the new raster data model introduced by ESRI in ArcGIS10. In ArcGIS 9, there were two primary ESRI data model options available for storing raster data: the raster dataset and the raster mosaic. In ArcGIS 10, ESRI added a third option: the mosaic dataset. The training video pilot provides a description of each ESRI raster data model, a clarification of some differences between the raster catalog and mosaic dataset, and a presentation of several benefits associated with storing one’s raster data as a mosaic dataset. Watch the training video pilot below.