"SDHC memory card" may be short-lived

Although it is an SD memory card that is widely used as a recording medium for recording not only digital cameras but also various devices such as mobile devices, music players, and game machines, the maximum capacity has been limited to 2 GB by standard.

However, in 2006 the new standard "SDHC memory card" that corresponded to the large capacity of 2 GB or more appeared, so if you purchased even SDHC memory card compatible equipment, you can now use a large amount of memory However, perhaps "SDHC memory card" may become a standard that is short-lived than expected.

Details are as below.
Developed 4GB SDHC memory card conforming to the new standard of SD memory card | News | Matsushita Electric Industrial Co., Ltd.

According to the release released by Matsushita Electric, conventional SD memory card adopts FAT16 etc. as the file system, so it was able to handle up to 2 GB capacity, whereas SDHC memory card adopted FAT 32 Because it is, it seems that it is possible to increase the capacity up to 32 GB.

However, the speed at which the flash memory capacity increases is faster than I expected, in less than two years since the first 4 GB SDHC memory card was released in the summer of 2006A 32 GB SDHC memory card corresponding to the maximum capacity has been released, It is thought that a new standard SD card corresponding to a new file system that has the biggest capacity larger than FAT 32 will come out before it is far.

SDHC memory card was not backwardly compatible with SD memory card, so if you want to use SDHC memory card, you had to replace it with compatible device, but even if SD memory card of new standard appeared, it is still used now Is it necessary that you need to replace the SDHC memory card compatible device that you are using?

IncidentallyAccording to Wikipedia, The standard covering the storage capacity of 64 GB or more seems to be under discussion by the SD Association which is the SD card standards organization.