tape dump between solaris and linux

i had used sony AIT tape backup data in solaris system, and the solaris
getting old, i moved the tape drive on pc linux system.
and this AIT tape drive is woking good for accessing new tape, but when i
dump the tape whick backup in solaris system that was not work, and always
show out the "reading error" message.
i am sure the solaris tape data was good, but i am not understant why the
different system could not data transfer!!
if someone know about it problem that you had met, could you tell me?
pk @ taiwan