18 Aug
2005
18 Aug
'05
12:01 p.m.
The cleaner portion sometimes has an amazing looking
mechanism I've
heard called "ruby blades".
AKA "Tape Scrapers"
Earliest cleaners used razor blades. Replace with harder materials
later.
These can clean and burnish tapes in good
shape but can also ruin a tape in bad shape.
It sounds like what you have are bad tapes.
Why would you risk them on a certifier/cleaner?