Output Buffer/readfile() Issue

[apollo168 0]

I'm working on a site that is successfully using a forced download for know MIME types.

My problem is with the readfile() function.  Some of the these files are >5MB, and using readfile() forces PHP to read the file THEN put it in the to the buffer.  That's way too long of a wait, and way too much processing.  Is there a way to stream file directly in to the output buffer?

Thanks for the help!

/apollo168