Format issue

So the DVD has been sent to the BBC twice now!!!!!

Now the format cannot be read on PCs in the BBC.

They have no macs which they have access to to watch it!

I feel like it is a struggle to work this way.

I am beginning to think that movie maker is the only way around so many of the issues we have been having.

I know I prefer mac, but windows is becoming the more accessible option for the tasks...............