mp4 or PSP Video format
psp is used by photoshop.
Mpeg-4
One possible answer could be that you didn't save the pictures into a file format that the psp can read, try looking at the file format and then look at the psp compatible files.
any format.....but the resolutin is 480 x 272
Your video has to be MP4 format. You have to connect PSP and computer then you drag and drop the video file in the PSP VIDEO folder.
'MP4' is a 'container' format, combining both audio and video information into one file. These separate 'streams' are themselves encoded, and there are many forms of compression they can use. The PSP can't always decode these streams - in short, not all files with the extension 'mp4' are made the same way. A file may play perfectly on a PC, but not the PSP because of this. What you need to do is use a program such as Super or PSP Video 9. You can run the mp4 file through it, and it can create another version of it specifically to work on the PSP.
psp mostly uses the mpeg4 format
PSP roms are in ISO format. They are in the ISO 9660 standard. However, it can be compressed to CSO, DAX, or JSO, proprietary formats developed for the PSP
To format a psp, all you have to do is connect it to a PC (make sure you have gone into usb connection on your psp). The open my computer, right-click on the psp drive and click format. Note:formating your psp will remove all files on it so you must recreate the psp folder, and inside the psp folder recreate, music, photo, video, etc) another way is to go onto system setings and go to format memory stick! easy! cole
.mp3
format it in settings