-upload of (youtube) fails and of normal from windows
-sort out audio channel count mess, assert what we get is what we expect early on.
+Port DVD rip
Write still j2ks straight to a MXF.
-Seem to be problems when waiting for (failing) server threads at the end of an encode;
-their frames aren't reprocessed locally.
md5_data to use openssl
Standardise j2c/j2k