As an all-round iPhone 4S converter, Aiseesoft iPhone 4S Movie Converter offers an easy way to convert almost any video files such as MPG, MPEG, MPEG 2, VOB, DAT, MP4, M4V, TS, RM, RMVB, WMV, ASF, MKV, 3GP, 3G2, FLV, SWF, MPV, MOD, TOD, QT, MOV, DV, DIF, MJPG, MJPEG, HD video, AVI to iPhone 4S MPEG-4, H.264/MPEG-4 AVC, MOV, M4V.Moreover, it can convert various audio files to iPhone 4S and other iPhone devices.
As the high-quality application, Aiseesoft iPhone 4S Movie Converter possesses lots of editing functions, such as merging videos, trimming video length, cropping video frame, and watermarking video.

Also, you can set movie effects and so on.