>>3613653Its either your roll of film being scratched by the canister itself (mfr error) or your camera's backplate and film guide are scratching your negatives. Its likely your camera.
Alternatively, it could be your reel when you develop. If you use one of those plastic reels with the guide at the insertion point, you could be scratching the emulsion without knowing it. Best to use either Jobo metal reels or the Paterson reels that are more open, like pic related