>>8
The fewer bytes you read off the disk, the better.
Not really. You see compression incresases I/O load. When reading and writing compressed data to and from the HD things go similarly to this: 1) read compressed data, 2) decompress the data; 3) process data; 4) compress data to be written to HD; 5) write the compressed data.
Rembeber a HD isn't a webpage here bandwith is severly limited and compression makes the internets faster.
Also you seem to have a bad case of stupid and need quickly help.