Subdirectories for F4V files

For the vod application folder, we want to stream FLV and F4V files.  This works OK when all the files are in that directory.  But I have content that could embed an F4V file with the same name that reference two different videos with the same name.

Content A - Intro.F4V

Content B - Intro.F4V

These F4V files I create a subdirectory under the vod and then that path is referenced in the content.

For F4V files, the files will not stream.  Is there any way around this?  I know naming the files uniquely is a possibility but my application doesn't maintain the content file names, so we would have to kludge in an additionally lookup and update the content files (SWFs) themselves.  They are all in this relative folder tree, so for local playing on a PC it works fine.  (PC doesn't stream)

I know I can add streaming folders, but I don't want to go through each folder, otherwise the wrong file might be played.

Any suggestions from the experts?

Thanks,

Jon