psp is used by photoshop.
mp4 or PSP Video format
Tagged Image File Format was created in 1993.
Exchangeable image file format was created in 1995.
A tiff file format is a type of image. Tiff itself stands for Tag Image File Format. It is basically the same thing as a jpeg or png image.
Is this an image from a digital camera? If its a JPG, its probably larger than 2048x1536 isn't it. Any image larger than that will throw an "Unsupported Format Error". If its a BMP it has to be less than 150KB in size for the PSP, but based on your question I bet its a JPG.
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.
Mpeg-4
TIFF stands for Tagged Image File Format :)
Yes, TIFF or TIF is an image file format.
Tagged Image File Format
Changing from one file format to another. A few examples:converting tiff image file to a jpeg image fileconverting raw image file to a jpeg image fileconverting wordperfect document file to a word documentconverting word document file to an openoffice document fileconverting excel spreadsheet file to an openoffice spreadsheet fileconverting windows media sound file to an mpeg sound fileetc.Note: both formats must be capable of storing similar things. An image file can be converted to a different image file format, but not to a spreadsheet file format or sound file format.
any format.....but the resolutin is 480 x 272