I have a gateway dc-t50 camera and replaced the 32mb sd card holds only 12 pica to a 4gb sd card and getcard error message ?

Refer to the manual page below - note the last 2 items
If you take the camera and the card to a sales outlet the assistants are usually helpful

Inserting an SD Memory Card(Optional)
All images and video clips taken by the camera can be stored in an SD (Secure
Digital) Memory Card. Even if the camera's power is OFF, the images saved in the
SD Memory Card are not erased. An SD Memory Card can be repeatedly read and
written. You may also expand the memory capacity up to 512MB so that you can
store additional images and video clips.
1. Make sure the camera is off.
2. Slide the battery/SD Memory Card cover in the direction of the [OPEN] arrow.
3. Insert an SD Memory Card :
The front side of the memory card (printed
arrow) should face towards the front side
of the camera.
If the card cannot be inserted, check the
orientation.
4. Close the battery/SD Memory Card cover.
To remove the SD Memory Card, make sure
the camera is off. Open the battery/SD Memory Card card cover. Press
lightly on the edge of the memory card and it will eject.
Note:
If the camera is powered-on without the card, the "NO CARD" message appears on
the LCD monitor.
To prevent valuable data from being accidentally
erased from an SD Memory Card you can slide the
write-protected tab (on the side of the SD Memory
Card) to "LOCK".
To save, edit or erase data on an SD Memory Card,
you must unlock the card.
MultiMedia Card (MMC) can not be used.
You need to format an SD Memory Card before using it in this camera

The camera uses SD cards. I assume your new card is 8GB, not 8MB as you stated. If this is the case, it's an SDHC card. While it fits into the slot, it is electronically incompatible and will not work in the SD-only camera. You need to use SD cards, 2GB and smaller.
You may download a copy of the manual here.

If this question is also about the DC-T50, then you need to replace your SDHC card with an SD card, as I mentioned in another response.

Hi, The DC-T50 only takes regular SD cards up to 512 MB in space. Most cards that are sold now are SDHC, which are NOT compatible. If you can find a 512MB SD card, it should be extremely cheap.
Happy Shooting!

bought new sd card for gateway dc-t50 camera. camera dept said camera is too old for the sd cars.

Is it an SDHC card? SD and SDHC cards fit the same slots, but many cameras won't work with the SDHC (high capacity) cards. SDHC is not backwards compatible.

http://www.rekam.ru/drivers/dcj01x.bin
Download the firmware above... Copy it to a freshly formated by the camera SD card..  hold the up arrow for all 3 100%'s  turn the camera on it takes 2 min  

try a 512mb because your camera could be older then the 1 and 2gb memory cards can handle...or depending on where you are..you could take it to Best buy and they could tell you...hope it helped =)

Hello:  I have this Camera And i FIXED this issue today. There is a Firmware for the camera it is called dcj01x.bin  I had to download it from a russian site.  here is the download link http://www.rekam.ru/drivers/dcj01x.bin  after you download it. format you SD card and put it on it. NOT through the USB camera cable... use a full battery Put the card in the camera, dial to A ,press AND HOLD the up arrow,  KEEP HOLDING IT... PRess the power button.. it will begin the firmware update.. 1st erase then, program, then verify.  after all 3 are 100% let up the up arrow and cycle power. you'll see v.38 ...  you now take faster clearer and YES every time pictures .... YA 

hope this helps   ..

PS the Toshiba firmware will not work... it is for a sony coms   the dc-t50 has a sharp...