Will a 4meg Flash card work for a Neo?

I've got an old 4 meg flash card I recovered from work. Any chance this'll work in my neo as a high volume card?

From what I've heard, flash memory cards WILL NOT work on a Neo.

Flash cards will not work, they have to be PCMCIA type 1 cards.
(Personal Computer Memory Card International Association)
The originals are only 2k. Other larger capacity cards of the same type work but you dont get extra storage as the card will be formatted as if it was 2k. afaik.
If youd like to see what they look like inside.
http://www.hardmvs.com/html/battery.htm