Please chalk-up another vote for an A-B Repeat hotkey. I know Shift-L works, but I'm a guitar player and both of my hands are busy with the guitar.
Being able to use a Consumer Media key for that function would be a plus as Microsoft Word would know that the key-press was not meant for it, assuming it was open at the same time as VLC Player. (typical when I'm deconstructing/learning as song)
Thanks