Thank you very much Gord,

There is a slight problem, however, with wmv in that it is quite a lot bigger, and apparently (although I have not come up against this problem yet myself) one may run up against the 100MB restriction before one meets the 10 minute restriction, which is not the case using the Vegas 7 AVC/AAC format (i.e. a 10 minute video is less than 100MB in AVC/AAC), which seems, from my experimentation to work just as well as wmv (or not well ) in my trials.

I may have another go with wmv.

Tim