Would it not be worth to consider, if only the training data (without the high capacity media) be downloadable to the PDA as normal training data in case of a card failure?
I have the same problem - all my trainings are gone. I can see it on the server, but cannot download it as a normal training, only as a route...
It wold be great, if one could download even only the relative small training data to his PDA.
Not long ago we also stored all the original data files ... but it got too much with all the videos and high resolution image files. So, for now you can only download the navigation routes from the portal to your PDA, but not the complete trainings.