on the side there is a slit you pull it aad it opens be careful though it snaps easily
i have a psp 3000 so i open it with my hand i put my finger on the umd case and i pull it back
Open the PSP's back cover, place the UMD into the slot, close the back cover.
Put the UMD in the disc holder then press UMD under Game then play! ----
A UMD is a Universal Media Disc
You can download a DLC or add on to a game and use it to play with the UMD game
It stands for Universal Media Disc.
The answer is both no and yes. You do not need custom firmware installed to run UMD games. UMD games are the disc-type games that you buy at the store. You will, however, require a custom firmware installed on the psp to run backups which are copies of the UMD (disc-type) on your memory stick.
it is a small game or movie disc incased in a small shell
The Sony PSP UMD case will,hold both UMD videos, and games (which are UMDs).
It could be the lazer that reads the disc is broken or damaged. Or the issue could be the umd itself or the firmware. I'd say send it in to sony and get it repaired. If your psp knows the umd is there but won't let you start the game the chances are the lazer is damaged or the disc is too dirty. If it lets you start the game then crashes and says the umd can't be read then could be the disc reader or the disc. First try cleaning the umd if that doesn't help then it's probably the psp. My psp 3000 has never had that but if the problem is the psp, send it in.
clean the disc or check your system
I think UMD stands for Universal Media Disc and PSP stands for Play Station Portable if that's what your asking for.