I have a HP PSC 1610 All in one printer and I tried putting my media card in the SD slot and it tries to read the card but the red light flashes and says memory card error. HELP Please!

If using the Card Reader -

The HP all-in-one has detected an error with the memory card.

1. More than one memory card is inserted in the HP all-in-one.

2. An incompatible camera is connected through the camera port.

3. A memory card is inserted and a digital camera is connected at the same time.

Solution:

Remove and reinsert the memory card. It may be inserted incorrectly. If the problem continues, the memory card may be defective.

Remove one of the memory cards. Only one memory card can be used at a time.

Check the user guide that came with the camera to see if it supports PictBridge. If it does not, try using the cable that came with the camera to connect the camera to the USB port on the back of the HP all-in-one instead of to the HP all-in-one camera port. If the camera does support PictBridge, make sure the camera is set to PictBridge mode. See the user guide that came with the camera for instructions on how to do this.
Remove the memory card or disconnect the camera. Only one can be used at a time.

You might try the following - Reformat the memory card in the camera or format the memory card in a Windows XP computer by selecting the FAT format.
Hope this helps!