A woman who suffered abuse over a period of 16 years is now trying to challenge Germany's five-year statute of limitations on those crimes.

Claudia Wuttke had no idea she may be a rape victim until police showed her a series of screenshots taken from the laptop of her former husband.

The 59-year-old author from the northern German city of Hamburg still recalls the horror she felt on seeing the images last year of a "completely dazed woman in various rape scenarios".

"That woman was me," she told AFP about the images from videos taken over a period of 16 years.

Wuttke, who now believes her ex-husband repeatedly drugged and raped her and filmed the sex crimes, first told her story to Der Spiegel magazine in May.