There are lots of digital cameras and other devices that will accept up to a 2 gb sd card. With the advent of 4 gb cards- will these devices also accept cards with higher amounts of storage capacity? Or will they reject a 4 gb card? If so, why?
2006-10-19 20:14:21 · 3 answers · asked by Brento! 4 in Consumer Electronics ➔ Camcorders
They won't reject but the card won't show up as 4GB, after all SD/MMC is upward to be a 4-bit serial device, not parallel like CompactFlash, I think that had some play in getting entire card accessed. There are total 9 or 7 metal contacts with SD/MMC only half of them get to be used as addressing pins.
2006-10-19 20:30:18 · answer #1 · answered by Andy T 7 · 0⤊ 1⤋
The card won't be rejected but it may only function as a 2 GB card, the trouble with SD cards isn't the amount of memory they were able hold, rather it was the amount of memory they could communicate with devices.
This is the reason SanDisk and other companies just announced and released the SD-HC, or Secure Digital High Capacity, cards which will be able to communicate with up to 16GB of memory. Trouble is, only new devices being released now are compatible with SD-HC so older devices are limited to 2 to 4 GB of memory.
2006-10-20 05:25:53 · answer #2 · answered by Splattman 2 · 0⤊ 1⤋
Older electronic devices use a FAT16 file system which has limits the maximum size of memory cards that will work to 2GB. Newer devices can access more than 2GB of memory by switching to FAT32.
2006-10-20 06:30:16 · answer #3 · answered by Chuckie 7 · 0⤊ 0⤋