Hi Broonage, I had no idea Delitto al Ristorante Cinese was out on blu-ray! I guess this really proves how popular the Corbucci/Milian films are in Italy

I have no idea how to go about applying subs to a blu-ray disc but, if you check out the '4 Flies...' thread here at LLL a couple of people have managed to apply my fansubs to the Koch disc - I would definitely suggest contacting one of them - I think it was DementedUK?
Assassino sul Tevere/Murder on the Tiber subs are almost finished, bringing this project to its first conclusion. Subs for the remaining films will follow but, at least for now, they're all English friendly either with subs or wonky dubs.
As always, I would recommend buying the DVD's (or Blu-Rays!) and slipping a subbed DVDR in the same case - Of course, that's only if you really like them that much - I can understand that they aren't everyone's cup of tea and a lot of people may simply be curious to see them. Don't make the mistake of thinking these films are prime Eurocrime - the settings and plots might be - but the delivery and overall feel of these films (certainly the 'Delitto...' series) are primarily comedies at heart.