Yes, the whole six-million-different-file-based-formats thing has really gotten out of hand. A friend of mine works for a post house that has started just dubbing everything off to SR, regardless of the original format, and digitizing it into their Avids for editing.
Have a try with ClipWrap [www.clipwrap.com]
Or, if you have Toast then that could be another option ... a lot of folks report good success with that, supposed to be very much faster than Voltaic