Any way to recover a dump tape

Tue Jul 10 02:34:45 AEST 1990

Does anyone know how to hack a dump tape?  Our Sun 2/120, OS 3.5 tape
won't restore. Something about "date mismatch...".  Apparently the initial
cassette volume date isn't in sync with the date of the next one.  It
seemed to happen frequently with multi-volume dumps (Sun repeatedly said
our hardware was suspect). 

Ideally, I'd like to restore the whole dump set but any file recovery at all
would be great.

Any help much appreciated.

Charles DeRykus				Internet:   ced at bcstec.boeing.com
Boeing Computer Services		UUCP:	    ...!uunet!bcstec!ced
Renton, WA.  M/S 6R-37			(206) 234-9223 (work)