Just bought a 4gb mini sd card for my ipod touch clone mp4 player. it recognizes the card but will not open the the card. i don't know my firmware but i'm pretty sure it is a rockchip player. help please.........

I guess you may have bought the wrong type of card.
These players for sure will not support SDHC type memory cards.
There is a good chance that the regular type may work though.

MP4nation do I believe have some non SDHC MiniSd cards in 4GB.

Was the card you bought an SDHC type?

the card is a non sdhc card.
i got it from ebay here is the link.


http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=160198850280&ssPageName=STRK:MEWN:IT&ih=006