Where are my photos and videos in my WD passport drive 2T?

I have backed up my mac 5 times during the last year using time machine back up into my 2T WD passport drive, does a new back up replace an older one? Also, where are all my pictures and videos stored in the WD?

Hi @eduardolatino

Please refer below link starting macOS Time Machine Backups to My Passport and External USB Drives:
https://support-en.wd.com/app/answers/detail/a_id/18952