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