Now this might be down to my search skills, but -
A media player like MPCHC that gives previews when you scrub the timeline
A reasonably small text editor that understands the different line endings like Winpad.
I found Elmedia Player for video, but I end up using VLC most of the time since Elmedia doesn’t generate previews for remote files. For text I found TextMate, which I like quite a bit.