I just recently bought the 170 degree wide lens.
It does a good job. The only thing I hate is the "fisheye" effect it give everything in the "outer" field.
I would prefer the regular 54 degree lens, but I have this one and am stuck with it. To change to the regular lens, I have to buy the camera and housing. That will cost almost as much as I paid for the whole unit and mounts.
But it does good job with videos.
As far as the error message Lyn-Del. If you have a card bigger than 2 gb in it and your video is more than the 54 minutes, I understand it will give an error message.
Just a thought
Ride safe
Robert