Footage from Michael Schumacher's helmet camera shows him going at the speed of "a very good skier" when he hit a rock and fell, investigators say.
Investigators probing the former F1 driver's accident say Schumache was eight metres off-piste when he crashed.
Prosecutor Patrick Quincy says he could not as yet estimate the 45-year-old's speed.
However, the prosecutor says the speed was not an important element of the investigation.
Schumacher suffered a severe head injury in the December 29 accident.
He is currently in a medically induced coma at a clinic in Grenoble where doctors describe his condition as critical but stable.
Michael Schumacher won seven world championships and secured 91 race victories during his 19-year career.
FOR MORE STORIES WATCH:
Like our new Facebook page:
Follow us on Twitter: