Thanks for the replies!
@ Slimiijs: I wish! It would need to convert a chunk of hands, not just one (and it didn't seem to like multiple HH - possibly I can't click buttons in the correct order - is possible). After multiple HH fail I'm too lazy to convert 300+ hands from a session one by one. 
@ nophun: Thanks for the offer! However -
@ SirVanek: Freakin' awesome! The pokerhandreplays.com site is exactly the stuff. I'll look for a good session to post and fire it up in the next few days (prolly after the weekend).
BTW 15Gb is *slight* hyperbole. Even 1Gb (which is more my usual size.. erm...) is too big for some... (erm....). I've mucked around trying to get a decent size video file but it ends up being a monumental waste of time so I've given up for reasons of technical incompetence.
However, this replayer should offer a great, second best, option. Thanks fella!