I want wget to prefer a certain filetype over another, if the files have the same basename.

For example:

if foo.ogg available, don't download foo.mp3

the way i use wget so far to crawl/automatically download (if anyone is interested):

wget -Dfoo.com -I /folder/ -r -l 1 -nc -A.ogg,.mp3 -i http://www.foo.com/folder/

but this, of course, gets me .mp3 AND .ogg files. It often also gets me image files like .png which i didn't want in the first place, and discards them afterwards. Any Ideas?

• (Syntax-Explanation:
  -D: download only from this Domain
  -I: download only from this subfolder of Domain
  -r: recursive (follow links and directory structure)
  -l 1: follow only 1 link deep
  -nc: no clobber = download only if file doesn't exist
  -A: accept/download only all *.ogg and *.mp3 (discard necessary html-files)
  -i: download-url/starting point)