Black tie is the second most formal dress code and is typically reserved for evening weddings. Despite what its title may suggest, black tie does not mean you must wear black, although traditionally men should wear a black tuxedo and a bow tie. Black tie appropriate attire for women can be an evening gown of any colour.
Traditionally, white tie attire for women stipulates that a ball gown which exposes decolletage must be worn. Evening length gloves are also required depending on the event, and tiaras may be worn by married women only. In a modern context, white tie for women requires a ball gown.
Digital technology changes so quickly. I received my wedding photos on a CD only five years ago, and now most computers don’t even come with disc drives! Prints will never be obsolete technology. 20 years from now, you’ll be able to sit down with your family and show them your wedding album. You can’t guarantee the same for digital files.