: : Access everything (files, streams, arrays) in same manner (thru
: : You choose byte order.
: : You can change byte order at any time.
: : Define start offset and length.
: : Optimized reading over http (download only needed range of bytes in a
file instead of having to download the entire file - uses byteserving
feature of http 1.1).
: : Advanced features - DataSource and DataSourceManager.