I thinking of creating a vrt for approx 19000 geotiff DEM tiles (SRTM).  Any 
comments on the performance or practicality of this?  Is there a difference in 
performance between Geotiff and GRASS as the tile format?

Mainly it's so I can easily extract regions for projects, so it would be 
one-shot gdal_translate runs.

-----
William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>
http://www.kyngchaos.com/

"The beast is actively interested only in now, and, as it is always now and 
always shall be, there is an eternity of time for the accomplishment of 
objects."

- the wisdom of Tarzan





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