I've written a SWF distributor which GZIPs the SWF then sends it as an SWF content type, it works just if the SWF used to loop it no longer does. Anyone know any reason why the compressed SWF doesn't loop the video/animation?
Besides the Content-Type header, do you also send Content-Encoding: gzip?
There is no need to GZIP SWFs.
They are by default already compressed files.
Gzip prevents the SWF from streaming. In the sense that.... totalBytes is 0. It causes most SWF files to fail to load or other nasty problems.
Look at htaccess and turn off gzip for swfs/video/sound