mathman opened this issue on Jan 21, 2007 ยท 21 posts
pjz99 posted Tue, 23 January 2007 at 2:06 AM
Yep that seems to be the case:
http://www.e-frontier.com/article/articleview/1600/1/582/
Poser Pro Pack, 5 and 6 also support binary compressed versions of these types and the extensions will change slightly replacing the '2' or '3' with a 'z' to indicate that they are zipped (e.g. pzz, crz, p2z.)