Audio format

just a question that has been bugging me...
Is there a lossless audio format that is smaller than WAV?
for example PNG is a lossless image format that is much smaller than BMP
i just wondered if there was an audio equivalent to that...
also, are there any mp3 players that support those formats?

Here is a good list of them, with pro's and con's of each:

http://wiki.hydrogenaudio.org/index.php?title=Lossless

thanx that was helpful