tisdag 17 mars 2009 19:26:16 skrev  Stan Horwitz:
> On Mar 17, 2009, at 1:19 PM, psoni wrote:

> > Does encryption automatically disable compression on the tape ?
>
> Since EAS encryption takes every byte of data and expands it from one
> byte to 256 bytes, then yes, you lose compression.

This is strictly speaking not true. The data itself is not expanded, but it is 
"obfuscated", thus creating a result where you really don't find much common 
sequences, which compression uses for it to work.

Best
Dag

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