IVF stands for Indeo Video Format, most commonly known as Intel Indeo (Intel developed this video codec). This codec was quite popular in 1990s as it was the first one to allow full-speed video playback without using hardware acceleration. Later Intel Indeo video codec was beaten by MPEG standarts and lost its popularity. Nowadays it is quite rare and commonly used in videogame cutscene videos. Not all modern decoders support IVF files.
Here you can find IVF converter apps and learn how to burn IVF to DVD, convert IVF to MPEG, IVF to AVI, IVF to DivX, IVF to MP4, IVF to FLV, IVF to iPod and other formats.
With DVDVideoSoft freeware you can convert, edit and burn a lot of video, audio and image formats. Plenty video formats are supported: AVI (DivX, XviD, etc.), DVD, H.264, MPG, MPEG (MPEG-1, MPEG-2), MP4 (MPEG-4 for Sony PSP, Apple iPod, Blackberry, etc.), VOB, SWF, DVR-MS, DAT, QuickTime (MOV, QT), WMV, ASF, 3GP, 3G2, DV AVI, FLV, H.263, etc. Key audio formats are supported: WAV, FLAC, APE, OGG, MP3, MP2, WMA, AAC, M4A, AMR. Key image formats are supported: BMP, GIF, JPG, PNG, TGA, PDF.