1)   Convexsoft Video PSP Converter 1.9
This is a powerful conversion tool that lets you convert various video formats such as DivX, XviD, AVI, WMV, MPG, MPEG, MP4, 3GP, 3GP2, RM, RMVB, MOV, SVCD, VCD, VOB and ASF formats to Sony PSP video (PSP-compatible format) with a few clicks.