vlc-data issue is due to it's being listed twice as a package in the debinx file it was found. Have changed the awk routines that find package lists, .deb file name, and the size getting function to find the first matching and not list both which was messing up the md5sum function as well as the size of downloads, hd space.. I am not sure that Debian/Ubuntu allow a double listing of a package in the same Packages file, but if that is the case, we simply find the first match and go with it in the above mentioned functions.
Fixed in the newest RC, please test, working here with vlc-data with the (main, universe, multiverse, restricted) backports and updates repos of Trusty in /opt/debextra/.