As Stephen Buffardi was transferring photos to his new phone, the progress bar reached halfway - then it crashed.

Thousands of pictures with friends and family, including early dates with his now wife, were lost forever.

"It was annoying," says the 36-year-old, who lives in Massachusetts. He and his wife Weena, 32, now have a six-year-old daughter, Sophia.

"When you have a kid you're like, it would have been nice to have those photos now - to save them for her."

Sophia will never be able to see the pictures of her parents when they first met.