Ok, i encountered a problem! i have  somehow managed to delete all my files!!? i have tried to recover them with little success.... as this task was working well for me i didn't want to abandon it and start something else, therefore had to start again!... On a positive note it was interesting to see how much i could remember from the fist batch of cards i created and how often i needed to refer to my sources..... i was pleased to find that i  managed to create most of them unaided and from memory, only checking they are correct before saving and moving on to the next one. I can definitely conclude from this that this task actually does work and has helped me to learn!! .... however it is still a pain having to redo all my my lost cards again!!!  bit fortunately due to my decision to use very little design to the card this helped a lot.