Ive been having problems while filiming with the Osmo I will start recording and record a few clips and everything will be fine, then it starts saying the card is slow and to reformat the card. So I change the the card out and put another card in and reformat before filming, during the reformat I get an error? any way to fix this?

This is the card im using.

https://www.amazon.com/SanDisk-E ... +64gb+microsdxc+pro

Also for the files that were getting the slow error / corrupt, are there any ways to retrieve them? They show up when down loaded but will not open.

Any one able to provide any input?

There is a software called ResucePro included with your Sandisk purchase. Did you claim that software? Its a good recovery software. But I'm not sure if it will repair the corrupted files.