Memory Stick Duo adaptor for Memory Stick and Memory Stick Pro

Product Information

If you had a "Format completed" message on your PSP and #1 above is true you can likely stop here and just start using the card. You can manually recreate this structure by copying it from another working card that formats successfully in your PSP.

It is probably wise to stay with the name brands of memory (Sandisk, Transcend, PNY, etc.) And, since you won't necessarily see speed improvements with the newest and fastest cards you can probably buy the lower end of the more modern cards. Have some spare ones sitting around that are a few years old? They will probably work just fine. Now - that being said, CSO compressed games are far from unplayable and in most cases won't have you twiddling your thumbs either.You may see some information/verbiage that states the PSP or the adapters support only SDHC cards. This is only because SDXC cards were not around when these devices were made there was only SD and SDHC format. So, the SDHC verbiage was meant to say "hey, we support the larger size SDHC, not just SD!" The same is still true in that the SDXC will work fine and indeed must be used if you want to use MicroSD cards beyond 32 GB. Alternately you can simply remove and replace the card. Some people believe that swapping cards while the PSP is on may lead to corruption of the filesystem on the card. While I have not personally experienced this, I tend to not remove my memory card while it is being accessed because I don't want to have to reformat and copy all my files again. However, do be sure to disconnect the USB mode from your PC before removing the card because that can lead to file system errors. The PhotoFast link includes some information about spotting fakes - but the thing is these days pretty much everything is a fake - or at least not a "name brand." This isn't all bad news though because the genuine CR-5400 cards can't even support MicroSD cards above 32 GB. So if you want to build a card with more than 64 GB of memory you need to find another (no-name) brand.

You should dissconnect from the USB connection and restart your PSP several times to ensure that the card continues to be detected. With all the cards (again, with the exception of #1) I was able to achieve a 2 x 64 GB cards (using the process described below).Your formatting tool should provide an option for Cluster Size (possibly called "allocation unit size"). Next is lettering. Here I mean both font and verbiage. The font is very similar on most cards, though some have a slightly stronger/bolder printing that might help you distinguish between them. But, more visible are simply the words. Many will state "PhotoFast CR-5400" as highlighted by the blue rectangle (which they aren't). The rest will just print a generically more honest "MS Pro Duo" and "Dual Slot Adapter." Taub, Eric A. (February 2, 2004). "TECHNOLOGY; Memory Evolution: Survival of the Smallest". The New York Times. I have personally confirmed mixing and matching of MicroSD cards of different sizes and speeds (although they were all the same brand - SanDisk). For instance I installed a 64 GB with a 16 GB to get ~72 GB (after format) of usable storage.