teamwin recovery.wiped my video in my phones memory.how can i recover it

[Bratt Beat]

i have a rooted galaxy s3 i9300 phone using teamwin recovery to flash costume roms.before i was on a pacman rom kitkat then i went along flashing a jellybam bam rom v7.4.0 android 4.2.2 not knowing i have a very important video stored in my phones memory.when i checked the video the video is no longer there.how can i recover that video?