Launch day, and launch day technical issues. Tech support say that the issues which affected my final test downloads yesterday are best fixed by moving us to a much more powerful server, which they are in the process of doing. It seems that MP4 downloads are working, but slowly. DVD ZIP files are cutting off. So until the server move is done (hopefully in the next few days) I have temporarily removed the DVD download options.
If you find that the MP4 files are too slow to allow your download to complete, please email me at firstname.lastname@example.org and I will see if I can upload to another location temporarily.
Very sorry for the teething troubles, hopefully will all be sorted by a move to a newer server with fewer shared users etc.