Stuttgart Germany Oct. 13, 1992

If the seller's name is Brent then you can count on that being BS.
Chances are it's just the badly done matrix that goes out of sync that's been around for decades

You could always ask the seller for a sample, compare it to the badly sync'ed matrix version.

I remember when the matrix version was shared, people were asking for the raw sbd but it wasn"t forthcoming. Must be a reason why that was.