1 of my umd is not working i put it in my psp it just loads and loads no umd options is appearing in the screen plz help....

Most likely the laser is weak. It has been awhile since I have changed a laser in a psp. But first off you should clean the laser with a q-tip and isopropyl alcohol and dry it with the other end of the q-tip. It doesn't take much for them to not be able to read a disc. If it still doesn't work you will need to replace the laser if you aren't that great at working on electronics or very small things you need to find someone to do it for you.

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Hi. Since you're in UMD Autoload mode, you need to configure that in the PSP Settings. To do this, turn off your PSP and remove your UMD. Now, turn it back on and it won't autoload your UMD since it wasn't there anymore.
Now, go to "Settings" and scroll down to "System Settings" and press X. Scroll down again the selection until you see "UMD Auto-Start" and press X. At the right side will appear the options "ON" and "OFF". Select "OFF" and press O button several times to go back to main screen.
Insert your UMD. Now, try playing games from Memory Stick. You may have to turn off your PSP and turn it on again to finally play homebrew...
I hope this helps...

This error is appearing because there is a setting in the hidden configuration menu that is set to require a UMD game disc to be in the PSP when it attempts to load.

Turn off the PSP, then hold the R button down while turning on the system. You will be in the Recovery mode/Configuration menu. Choose configuration, then go to the 5th option, and press X once. This will switch it to "NO UMD". Then press X on "Back", then "Exit". Once you restart you should be able to load the ISOs, CSOs etc. without getting the 80020321 error.

Hope this helps you!

Below where the UMD game appears on screen try the button below that should say 'Update PSP'. The game could have an update for the PSP and won't play without it. If this doesn't work contact Sony Website Forums and see if anybody there has had the problem.

Update the system,....Alot of UMD games hang when they try to updeate from disc..If you download the update via internet and install it from the memory stick duo you should have no problem playing your game, the system will see that the firmware is up to par for the umd and will not do the system check so no lag time with loads...good luck hope this helps

You are going to need to reset the PSP. This can be donw by following the restore PSP function in the options menu

If your PSP isn't reading games and/or movies and the problem isn't that your trying to play dirty, bent, or damaged UMD discs there are a number of other reasons your PSP is not reading disks correctly =

- Your UMD motor may be malfunctioning.
- Your laser may have worn down from use over time.
- Your UMD drive tray may be bent.
- There may be a foreign object in your UMD drive

Common symptoms

* disks fail to load
* extremely slow loading
* strange whirring noise when trying to read disks

For whatever reason your PSP has stopped reading games and/or movies we will get your PSP back to you and playing like like new fast! Our price includes labor, parts, and return shipping via priority mail.

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try cleaning the lens with a cotton bud if you dont succeed take out the battery for a few seconds this happened to mine the other day and then started working see how ya go!!!!!!!!!!

UMD is Universal Media Disc, its a small disc are used for PSP.  press the "eject" button on the top to open the disc tray. Usually the problem its not from the UMD, but from the console.

The first check the version you are running on psp, >> Go to the PSP Menu and move across to the "Settings Menu". Scroll down, select to "System Settings" >> "System Information" and you should see version of your PSP. If the UMD has a high version than ur console, u need to update ur psp. 

plz visit my blog, for psp update guide.

I think the lens might have died permanantely, or maybe just it's temporary. I've also had the same problem, and one time I turned it on, it started working again. Wait about a day and see if it still happens.