HP appears to have the manual at
And on page 129 calls out the 1GB limit.
http://www.amazon.ca/SanDisk-MicroSD-TransFlash-Memory-Card/dp/B009E5LXS0/ref=sr_1_13?ie=UTF8&qid=1374594870&sr=8-13&keywords=1gb+sd+card finds such but given the age and how you get to put in batteries every 20 to 40 pictures I feel you should not pursue this.
There is clearly a lack of available information about the HP E317 Camera and although it is older - it is still quite suitable for our particular need since I am giving it to a neighbor child. I want to increase the memory but am finding it difficult locating a memory card.
At the moment the card is- HP128MB Secure Digital Memory L1873A but every store I have been to says they do not have anything that small which makes me a little concerned about buying something that "looks good" on line.
What type of card can I now purchase and from where can it be purchased? (Ontario Canada). It is not a huge deal but it would be nice to give the child something she can work with for a couple of years