Tar: tape blocksize error

When trying to extract a tar file in HP-UX using tar -xvf command it exits with the following error :"Tar: tape blocksize error".

Tar file is created using the following command with MKS toolkit(Unix Simulation Kit for Windows env) under Windows 2000 Professional:

"$tar -cvf test.tar test.txt test2.txt"

Let me know what could be the possible issue and resolutions.

Try
tar tvf - < test.tar

Also how was the file transferred to hp-ux? ftp in ascii mode won't work.