RewriteEngine on 
# RewriteCond %{REQUEST_FILENAME} !-d
# RewriteCond %{REQUEST_FILENAME} -f
RewriteRule ^live/(.*)$ live.php?path=$1 [NC,L]
# RewriteRule ^(.*)$ $1.php [NC,L]

AddType application/x-httpd-php .html .htm
<Files ".db.db">
Order Allow,Deny
Deny from all
</Files>