What is xz ?

[Manish Jain]

   Hi all,
   I just downloaded FreeBSD-8.2-RELEASE-i386-dvd1.iso.xz and the md5
   checksum is correct. Can someone please tell me what does that xz at
   the end stand for ? It looks like it stands for some kind of
   compression (gzip/bzip2/some new format), but I can't figure out
   exactly which one.
   Thank you &
   Regards
   Manish Jain
   [1]invalid.pointer at gmail.com

References

   1. mailto:invalid.pointer at gmail.com