How to Mount a UMD VIDEO ISO ?

YOU MUST HAVE A UMD DISC inside your PSP (For example : DEMO UMD or GAME UMD)
if you don't have umd disc you don't play UMD VIDEO ISO on your PSP-sorry...

RECOVERY SETTINGS:
UMD MODE: Sony NP9660 -NO UMD-
FAKE REGION: DISABLED
FREE UMD REGION: ENABLED
USE VSH MENU: ENABLED
CPU SPEED IN XMB and UMD/ISO: 333

1.you must have CUSTOM FIRMWARE 3.52m33-4 or higher
2.you must have ISO in ISO/VIDEO folder
3.press SELECT (3.71m33 or higher) or HOME (3.52m33-4) in XMB (main menu of PSP) to get to the VSH MENU



4.set CPU CLOCK XMB and CPU CLOCK GAME for 333/166
5.set UMD VIDEO MODE to NORMAL
6.select ISO VIDEO MOUNT and select your ISO (with < or > )
7.Click EXIT or click select from VSH MENU, please wait or...
8.you have ISO mounted in VIDEO--->UMD in XMB

source pspiso.com