+=== How to test ===
+
+{{{
+time lzop >/dev/null <testfile
+time gzip >/dev/null <testfile
+time bzip2 >/dev/null <testfile
+time xz >/dev/null <testfile
+}}}
+
+"testfile" is a 175MB avi (southpark_12x12_about_last_night.avi). It's not really compressible, which helps level the ground.
+
+=== Results ===