SDTSCon. SDTSCon converts SDTS DEM files back to the original DEM format. The "Spatial Data Transfer Standard" (SDTS) is a new government data standard for transfering various kinds of mapping and terrain data. The new standard is more complicated and convoluted than the original standard, and so, in some ways it is less useful. For example, a typical SDTS DEM file can require 18 files, where as the same data in the original format only requires one. For this reason, many programs only support the original format.

SDTSCon has several features that are unavailable in other converters:

ERROR DETECTION. Many DEM and SDTS files have internal errors that make them unreadable, unusable or distorted. SDTSCon can detect and correct many common format errors, making the files usable inspite of the errors. This can be very useful, because in many instances, error free versions of the files are unavailable ANALYSIS. SDTSCon displays a detailed analysis of the contents of the SDTS file. This allows you to see problems in the file that can effect the accuracy and usability of the elevation model. SPEED. SDTSCon is four times faster than other similar programs.

Getting A Copy.  SDTSCon. Is freeware. You can download an copy of SDTSCon by clicking here.