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. Last identifying trait I want to point out on this front picture is the plastic used. Specifically, if you look at #1 (the genuine article) you can see that the plastic is of a translucent type. If you look at the area circled in green you can see the internal circuit board of the chip. This isn't just because the material is thin and flimsy like #3 it is actually one of the more quality cards in terms of construction. You don't really need to worry about this because the genuine PhotoFast is the only one I've seen that has this translucent appearance, but it is good to know in identifying an original. Note: Personally I was very concerned when I was unable to successfully format my card using the PSP. My thought process was that if the PSP is not able to successfully format the cards then it likely wouldn't be able to read/write data to them without issues either. This issue kept me from getting a successful build of a high capactity card for months as I searched and searched for adapters and MicroSD cards that would successfully format. If you want to go with up to 128 GB I think most any card will work. To go higher than that you might have a bit more of a challenge finding a card like #6, or some other card that has proved trustworthy for others.

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. Try a different CFW (though I doubt it will make a difference as long as both support high capacity).

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. The next identifying feature is card slot shape. This is highlighted with the red rectangle in card #1 (the *genuine* PhotoFast card). Cards either have the rounded slot shape of #1 or the jagged shape of all the others. As I haven't tested any other cards with jagged slots I can't definitively say which type of cards might be better on any given trait.

After many tests I decided that it was unlikely I was going to ever get a clean format on anything over 128 GB. After reading rsn8887's thread above and seeing that he encountered the same issues I did I gave in to the fact that I probably have to rely on Windows to properly format the cards. There are more cards than I have shown here but for the most part the taxonomy above will at least allow you to select and try different types of cards. I am happy to report though that although the PSP has issues with the formatting, it appears that once it is formatted properly via PC the PSP has no troubles accessing the cards. You should dissconnect from the USB connection and restart your PSP several times to ensure that the card continues to be detected.Sony introduces the a7R IV with 61 Megapixel full-frame sensor". Digital Photography Review. July 16, 2019 . Retrieved July 16, 2019. 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. Sony announced on June 1, 2009, that M2 support in Sony Ericsson phones would be dropped in favor of microSD. [31] Note this does not mean that things from the card will load slower, but it means that the PSP will take longer to recognize the card and load its contents into the XMB memory.

At this point the PSP drive letter should show as a good drive on the Windows system and you should be able to browse and copy files to/from it. While I don't have any experience with them directly they are likely easier to work with since they use only a single card for formatting and therefore would be only a physical adapter (as opposed to circuitry which combines two cards into one). If you have or can get a deal on a single MicroSD of the capacity you want (say 1x 256 or 512 GB) you might be better off just getting one of these single adapter cards. If however you can't get the PSP to recognize the card with all space you will likely need to get a hold of another adapter, MicroSD card, or possibly CFW. The only difference between SDHC and SDXC cards is the maximum storage capacity and default file system format.This depends on what firmware is running on the PSP. I believe that the latest OFW version can support up to 128 GB (though it might be as much as 256 GB). Most of the modern CFW should support up to 2 TB. You should verify what your FW can support before buying anything. To do this, you need to hook your PSP up via USB and go into "USB Connection" to mount your PSP to your PC. If it doesn't show the correct space then you won't be able to continue on with the next stage of configuration.

After you manually create this folder structure on your PSP drive which has been successfully re-formated via the PC tools you should be good to go in using this card in your PSP.In practice however the PSP is likely to give you several different kinds of "Format failed" errors. Additionally, all my tests were done with MicroSD cards up to 200 GB capacity (because I got a good deal on them). This means the largest high capacity setup I have personally tested is 400 GB. Theoretically, the information in this guide should be attainable for MicroSD cards of 256 GB, 512 GB, or even 1 TB in size. Practically however it may be that the adapters on the market today have a limitation or that the CFW will not indeed support such large sizes. I will leave it up to others who have the available hardware to test this. You may opt for a smaller card and use CSOs to save space. Comparable to the speed differential, many games can be compressed considerably from their ISO forms. Additionally, the adapter you use may determine the maximum amount of memory (based on what it can support.