[vcf-midatlantic] Help with reading old round Mag tapes?

Mike Loewen suggested that I join this distribution list and post my request here. I have several old round mag tapes, likely written on PDP-11/VAXen and CDC-Cyber, probably 1600 BPI that I'd like to try to extract from. Old code, old docs, old stuff :-) I live between Wilmington DE and Philadelphia PA but get up to North NJ fairly frequently. I understand the tapes may not be readable... Thanks in advance for your time. - David, KB3RIJ