How do i download umd dumper and when i download it it says corrupted data

ithink your your psp hav some spam either from internet or from cds..i try removing it by scanning the system and if still the problem exist then u try this site to solve the problem...

the game cannot be started the data is corrupted

that is a (your firmware is a official firmeware)you cannot run any software like umd dumper you shoud have custom firmware if you want custom firmware if you a fat or slim and light psp you aree in luck you can make or buy a pandora kit and downgrade from any firmware if you are using psp go u cannot have psp custom firmware although the dark alex(creator of m33)is finding a way to make custom firmware in psp go and if you have psp slim and brite you cannot make the custom firmware yourself you may consider giving it to a game store for custom firmware thanks rate 4 thumbs i helped you naa

You can't download games unless you have custom firmware some custom firmware have viruses and i don't reccomend you trying to get games because they might crash your computer and it's hard to put games on it because most of the time it says corrupted data

If you have custom firmware installed you can download umd dumper: http://www.psp-hacks.com/file/38.Just put the umddump and the umddump% in PSP,GAME and then put the umd you want to copy on your psp and on your psp go to game, memory stick and click x on umd dumper.Then when its done coping go to game, memory stick and there should be the game of the umd and you dont have to had the umd to play the game.

On all games or just one?

Sounds Like Bad UMD drive. not uncommon.

download a program called umd dumper that might help

First to have games on your psp you have to have a program on your psp called umd dumper. you can find it on google by typing umd dumper and clicking on the first choice that comes up and then dowloading it.( before you continue here you must make sure your psp is downgraded, atleast vesion 3.11 or lower thats what i have. go to the file where you saved your download, double click and extract all the files from it. now connect your psp to your computer. now go to your downloaded folder and find two folder called umd dumper %%%%, copy and paste those to files on your psp that is still connected to your computer on a file called psp. now diconnect your psp and go to your game section on your psp and click on memorystick you might find two folders, umd dumper and corrupter file or just umd dumper, dont pay attention to the corrupted file. put a game in your psp and click the umd dumper, it will automatically start extracting files from your umd and put it on your memory stick ( make sure you have enough space on your memory stick depending on the game) after its done now connect the psp back to the computer and this time you will notice a new file with a umd picture on your folder, drag the umd folder and drop it in a folder called ISO, if you dont have a folder called ISO look on the internet on how you can get on on your psp. now when you are done diconnect it and go to your games section and on your memory stick you will have the game you just extracted. click on it and enjoy your game onyour memory stick..( if this information is not accurate enough you can go to, youtube.com and type umd dumper and watch some of the videos on there one of them might give you a better understanding)

umd dumper does not support on my psp

unless you have custom M33 firmware to access the umd thru usb, or have low or custom firmware to use a umd dumper, you cant copy it.