Make sure the skin (i.e.) the .swf file(hd-flv-player\hdflvplayer\skin\) has Read/Executable permission (to check -> Right click – Properties – enable Read/Execute option)
Go to php.ini file in php installed location on your server(eg : “htdocs/php/php.ini”) and Make sure your server’s ‘file_uploads’ value is enabled.
And check ‘upload_max_size’ in php.ini and increase the size accordingly.
Check the list of formats HD FLV Player supports in the Features page. And see if your format is covered under these. The player doesn’t accept formats other than these.
Go to php.ini file in php installed location on your server(eg : “htdocs/php/php.ini”) and make sure that the “post_max_size” value is greater than “upload_max_size” value.
If trouble continues even after you do this, then check the below:
Increase the “Maximum_execution_time” value.