In general devices this old won't read the higher capacity SD cards. I would stick with 2 or 4 GB. I have noearthly idea if this isthe problem but if you are using an 8 or 16 GB card I suspect the carditself is not the problem but the system you are putting the card in may not be capable of handling a high capacity card. Look at the card, if it has HC written on it that may be the problem.