Because of physical memory randomization (PASLR) being enabled for Pokemon Omega Ruby & Alpha Sapphire with 11.1.0-34 firmware, access to its savefile / extdata has become severely restricted - methods that used to work with previous firmwares no longer work on 11.1. There is
a way to bypass PASLR with the latest version of JK's Save Manager and Pokebank , but it will only allow you to access the savefile, not the extdata (which contains saved battle videos). As far as I know, there is no way to access ORAS extdata on 11.1 firmware. I've had a report of
3ds extdata dump tool being able to do that, although I couldn't get it to work myself.