Tom Petty's daughter reflects on the pain of making "An American Treasure"

A year ago Tuesday, America lost the iconic voice of rocker Tom Petty. In his memory, Petty's daughter Adria put together a tribute collection called "An American Treasure," featuring previously unheard recordings and live performances of the legendary musician.

Adria told "CBS This Morning: Saturday" co-host Anthony Mason that she wanted to give something back to her father's fans who she knew were grieving just as she was. The months she spent combing her father's archive to assemble the new box set, she says, were often painful, but also touching. FULL STORY HERE