Reference the aircraft cameras in posts above. They are fitted to the longer A340-600 but not to the A340-300 such as the series involved in this case. (Currently on board cameras are not recorded in any case.)
There are runway video cameras fitted at some airports and these have proved useful in analysing incidents such as the Cathay 340 tail strike out of Auckland. I believe they are a good idea and could easily be installed at all major airports on a continuous loop system.
Regarding the FDR, there are different types of recorder around, plus the format (i.e. dataframe) of the recorded parameters varies from airline to airline as long as they have included all the mandatory parameters. This can take time for an investigation team to sort out. Also unless the GPS position is recorded to a sufficient resolution it can still require a fair bit of work to accurately compute the exact touchdown point from the FDR data. Hence the usefulness of ground video.