mod_rewrite and cgi

Is there a way to use mod_rewrite to
- test incoming uri for something like /cgi-bin/foo/bar.cgi
- and then remap it to a file like so foo/bar.php

I have tried this:
RewriteRule ^/cgi-bin/foo/bar\.cgi$ foo/bar.php [R,L,QSA]
but my rewrite log show this:
- (2) init rewrite engine with requested uri /cgi-bin/foo/bar.cgi
- (3) applying pattern '.*' to uri '/cgi-bin/foo/bar.cgi'
- (4) RewriteCond: input='GET' pattern='^TRACE' => not-matched
- (1) pass through /cgi-bin/foo/bar.cgi

Any thoughts?

(I posted this originally in alt.apache.configuration--sorry for any
crossover.)