this card correct?

[wai3000]

http://www.btinternet.com/~mark.hemming/cards.htm

i brought some silvercards from the site above
description:
"Original high quality 'alpha chip' blank MM GoldWafers
PIC16F84A (20Mhz) and 24LC16B embedded into a plastic card"

but verytime i go to write on the eeprom it shows errors, i have tryed on two differnet PCs, what other software could i try this one? i have been using "Card Master"

[jahja]

You confuse a matter just a 'term'
Goldwafer refer to Pic 16F84+24LC16
Silvercard refer to Pic 16F876+24LC64 or Pic 16F877+24LC64

Alpha chips only the manufacture, it may state anyelse, to know more about what card you have can't tell just to see with your eyes, You should have to use a programmer (USB) which can detect the type of the card.

When buy a card it is better to know the type of processor and memory size you plan to use, instead call it by false name.