Match first file of a Rar post

[Random]

LAST EDITED ON 04-29-02 AT 03:21 AM (EST)
This was easy some time ago but now there is some rar post with files named
file.part01.rar
file.part02.rar
ect

or
file.part001.rar
file.part002.rar

The regular expression I use now is :
([^.][^P][^A][^R][^T][^0-9]+[^2-9]|\.PART0+1)\.RAR

If you want to find all kind of 1st file this one should work:
([^.][^P][^A][^R][^T][^0-9]+[^2-9]|\.PART0+1)\.(RAR|ZIP|ACE|001)

Any comment or better idea ?

(sorry for my bad english)