thought this might be interesting in relation to formats for large-scale array data
Dr. Dobb's Journal December, 2005
XML-Binary Optimized PackagingXML and nontext data can work together
By Andrey Butov
Andrey is a software developer in the Fixed Income division of Goldman Sachs & Company. He can be contacted at .....
For several years now, the development community has followed the emergence of XML-based solutions to common data-representation problems. As a metalanguage, XML is a success. A cursory search reveals several of the more popular custom languages utilizing XML as a metalanguage, including MathML for representing mathematical concepts , Scalable Vector Graphics (SVG) for representing two-dimensional vector and raster graphics , and Really Simple Syndication (RSS)  for distributing news headlines and other relatively frequently updated data such as weblog postings, for consumption by, among other things, RSS aggregators....[clip]ooo [computer]ooo