Sony said that it will present four movies on its UMD format for the PlayStation Portable.
The movies will be released on April 19. Among them are: XXX, Hellboy, Resident Evil 2 and Once Upon A Time in Mexico.
UMD (Universal Media Disc) is Sony's disc format used in the PSP, which can store up to 1.8GB of data on a disc smaller than a CD.
More info at BetaNews
Sony planning to release four movies on UMD format for PSP
