I usually attached screen captures/prints of design works (logo, prints, web design etc) with project completion signoff as proofs/evidences for clients to sign-off. There's one thing I'm curious of: how do you present with web development, video, Flash, motions etc to be used as proofs/evidences to be attach with sign-off paper: URL link? attach with CD? none of attachment? other method?

Appreciate your comment,