I have a solaris box with no internet connection. I downloaded a .tar file to my XP box, burned it to CD and copied the file to a directory on the solaris box. When I try to untar it, i get a directory checksum error. I don't know enough about unix to figure this out. Can someone please help me?

The file name is october2010.tar.tar on my xp box, but it's u_u_0001.tar when i copy it to the solaris box.

Please advise. Thank you!