Thanks for that. The open SWF format appear to go upto version 3. However the full spec of SWF 6 is available from MacroMedia and Open SWF spec goes upto version 5 now. This would at least give an idea about the magnitude of work required. Perl::Flash appears to go upto version 4 but is only just ahead of Flash::SWF but I think that this can easily be caught up.

The only problem I can see with updating the modules is that Flash 4 and above contain ActionScript a simple programming language in its own right.

This is going to be hard work... but it could be a lot of fun. Anyone be interested in serving personalised Flash on demand?

Hope this is worth it...
UnderMine

Asside: ajt mentioned this which shows how to cut down the size of the Flash embedded object tags.