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Hi! Does anyone have information about possible formats for highly compressed vector data? Some basic requirements. Must be possible to read using the larger commercially available platforms. (ArcGIS, Luciad, MapInfo etc.) Must have tools that allows us to create files/format from other data formats (i.e. Shape) Speed when reading the format is important as the data is among other things used as a live map in mobile platforms. Compression speed is less important (although nice) Must be possible to use a map product in a wide scale range, a 50k map shall be possible to read at a 1 000 k zoom level Ability to do selective updates on area, feature-ID or other search criteria would be nice, but not a must. Memory footprint must be small, it needs to work with Windows XP and/or Windows 7 allocating less than 1GB RAM so some kind of smart cache management must be implemented To give an idea of the required compression and as input for memory footprint requirements, I need to store approximately 1TB of shape data to a 100GB disk. Does anyone have suggestions for good products? Best regards, Johan