Untitled

nathan@micro:~/media$ dd if=/srv/storage/Macworld_2011-11.pdf of=/home/nathan/media/Macworld_2011-11.pdf bs=32k

1147+1 records in

1147+1 records out

37617586 bytes (38 MB) copied, 1.03095 s, 36.5 MB/s

nathan@micro:~/media$ dd if=/srv/storage/Macworld_2011-11.pdf of=/home/nathan/media/Macworld_2011-11.pdf bs=16k

2295+1 records in

2295+1 records out

37617586 bytes (38 MB) copied, 1.48781 s, 25.3 MB/s

nathan@micro:~/media$ dd if=/srv/storage/Macworld_2011-11.pdf of=/home/nathan/media/Macworld_2011-11.pdf bs=64k

573+1 records in

573+1 records out

37617586 bytes (38 MB) copied, 0.765412 s, 49.1 MB/s

nathan@micro:~/media$ dd if=/srv/storage/Macworld_2011-11.pdf of=/home/nathan/media/Macworld_2011-11.pdf bs=128k

dd: writing `/home/nathan/media/Macworld_2011-11.pdf': Invalid argument

1+0 records in

0+0 records out

0 bytes (0 B) copied, 0.00455867 s, 0.0 kB/s