Mount bzip2 disk image

Hello.

I've got a bzip2-compressed quite big HD image. Is there a way to mount 
it (read-only) without uncompressing it first? I don't care about 
performance as I only need to recover a single file.
Uncompressing it would probably take days, provided enough space is 
available (which I'm not sure is the case).

The idea would be:
_ mdconfig -a -f xxx.img.bz2
_ .... use something over /dev/md0 to get /dev/xxx
_ mount /dev/xxxp4 /mnt/tmp.

Does such a thing exist?

  bye & Thanks
	av.