Am I hosed? gunzip question/problem

OK on a client's development box I have been performing archives using ontape to a named pipe to gzip to create a ontape_save.gz file of approximately 7 gig. Now I need to perform a restore (ontape -r) but when I start the gunzip ontape_save.gz command (to said named pipe or by itself) I get the following message: ************************************************************** gunzip ontape_save.gz ontape_save.gz: Value too large for defined data type ************************************************************** What is the problem? Is there anything I can do about this? Or am I truly hosed? In the future should I go back to using compress iso gzip? 32 bit - Sun box - SunOS 5.8 IDS v9.30 Many thanks in advance. Rob Vorbroker