Seems like artmix,  has been kinda of (limited) on his friendliness/helpfulness these days.

Maybe he is up to his neck in busyness?

Or maybe he is tired of the monotonous continuious flow of low level questions? it's hard to say...

i know guys like Mike McMaster / ARTMIX / BMOW they really don't make much margin, considering how much they have to spend and the GROSS amount of time 

that is involved, considering they are one man bands

places like http://smart-prototyping.comto make it easy and cheap for the whole PCB aspect.

and there is always

http://www.aliexpress.com,   buying your parts from places like mouser/digikey/farnell,   their pricing structure is not friendly

to guys trying to build 50 /100 units.

http://www.aliexpress.com- is a great resource, they ( the sellers ) and ( the brokers ) REALLY REALLY want your business and will bend over backwards 360 degrees for you.

So yeah there is a slight chance you could get something counterfeit.  but --- if you sort by price … just do not by the lowest price version of what your looking for… if the AD looks kinda

sketchy with poor wording and poor photos… then don't buy it, and pay 1/2 a penny more down the list.

anyways sorry for the way off topic info… i am glad i could help and ENJOY!

don't forget for a great HD20 solution try the BMOW floppy emu!