Yes, Sony offers memory card readers including a 17-in-1 Memory Card Reader for around $30.
It all depends on what make and model memory card you have
There are so many reasons why it occurs. Maybe your memory card is not functioning or your card reader itself. There's also a posibility that you card reader is not compatible with your memory card, make sure you have the manual for your card reader for it's specification and compatibilities. Many card readers today uses memory card adapter aside from the memory card alone. It function as a protective material for your memory card. Maybe your card reader needs an adapter not only the memory card. I hope this one helps.
Any memory card will work for the PSP, but if you want to make sure it works get a Sony one.
Sony's M2 memory stick only works with Sony products.However they seem to have abandoned the format for microSD.
Belkin and Dynex both make inexpensive 5-in-1 memory card readers (there are about five major types of memory cards on the market.)
You can just set the contents inside to Read Only, if you are using a memory card reader there is also a lock button
There is a reader called the Moshi Cardette 5 in 1 USB 2.0 High Speed card which is really stylish
The magnetic card reader will require a credit or debit card to make contact with the reader. The magnetic card reader will read the numbers off of the card once contact is read in order to submit a debit entry from the card to the officiating bank.
Open My Computer and see if the card is listed in there. Alternatively invest in a card reader, this connects via USB and reads multiple formats of memory cards, SanDisk make a great one, it reads 12 different types of cards
Most are plug and play so need nothing extra.
Most Sony consumer grade cameras use Memory Sticks. Some use both those and SD cards. SanDisk manufactures both. However, you must make sure you have the right type.
It can pull and transfer information rapidly off of your memory cards.