Erdas has released version 4.1 of its ArcGIS 8.x and 9.x ECW JPEG 2000 plug-in. This updated plug-in gives users interoperability between the latest version of ArcGIS desktop products and the ECWP high-performance streaming imagery protocol. The ECWP protocol allows users to easily access large amounts of image data (1000s of gigabytes or more) over the internet.