No.
There should be no reason for you to need to do this because you cant save any files on the SONY PSP without a memory stick duo.
Files deleted from memory cards can often be recovered given the new files were not over written on the old files. If you accidentally deleted pictures from you memory card make sure you don't use the card for further storage so your files don't get overwritten. There are many free software available "zero assumption digital image recovery" is my favorite. Scanning your card with it will give you a list of recoverable files and you can choose which files you want to recover. I have recovered photos and videos deleted 2years ago from my phone's memory card with this method.
it won't corrupt the new memory card except for the corrupted files you x-fer over. so the disk space the corrupted files take up will be screwed but the rest of the memory card should be just fine.
You need a Memory Card reader device to connect the Memory card to a computer
It should allow you to copy from your PC to the card yes
The memory card is what the digital files are stored on. If you have no memory card in your camera there is nowhere for the camera to store the files. It is like not putting a film in a film camera or trying to burn a CD with no CD inserted to the drive. No Some digital cameras have internal memory so you don't need a memory card. I figured this out 2 minutes before I saw this question.
Connect memory card to your PC, copy and paste in the files from your PC to your card
Files can get lost due to many reason, like uh, users deleted some files mistakenly. the iphone and ipad get broken and the memory card get attacked by virus, etc. but generally they can be recovered quickly by Data Recovery for iTune, Data Recovery for Mac by Wondershare.
Without a port to attach the memory card to, you won't be able to.
they are on a memory card whitch you buy from a store
It's the memory card (sometimes called memory stick) that's used to hold the image files.
You can't. Hopefully you have a tab on the memory card. If you do, just move the tab to allow writing to the card.
It's the memory card (sometimes called memory stick) that's used to hold the image files.