Dave,
Thanks for the info. Personally I think the whole Prores thing is a completely pointless exercise furthered by Mac FCP based editors who know diddly squat but want to seem knowledgable. There is nothing worse, in my book, than an idiot who is yet to cotton on that they are indeed an idiot (and a lot of them seem to be users of Mac and FCP). I eventually gave the client the original files from the EX1 along with Quick Time hires files as back up and I’ve heard no complaints or grumbles.