On 09/09/2013 11:10 AM, Gareth Magennis wrote:


Those are contacts, not the head gaps. Where is your "black sludge"
coming from?




You are not making a lot of sense.
Both VCR and DAT heads get dirty, black stuff comes off them when you
clean them, then they work properly again.


Seriously, the only "stuff" you should see is maybe some shedding from
cheap tape, usually more brown than icky black. Do you have a lot of
smokers around?