Hi i have an lg optimus spirit p690f which had saved games & music on the sd card, it has been taken out of my phone & put in another one & the apps saved to it have gone. When I go into settings-manage applications-& select all it shows the missing apps but when I select them it says file format invalid. However when I choose the On SD card tab it states NO APPLICATIONS. How do I recover or convert the files into the correct format??