Seismic field data can not be downloaded from the NDR.
Field data can be requested on physical media. Request Physical Media Download
Not all seismic field data (Seg-D) data has been loaded to the NDR.
The NDR continues to hold some SEG-D data on physical media. If you cannot find what you are looking for on the NDR, please contact support with information on the survey you are interested in and a search of the physical media will be undertaken.