DAT is a file extension used in the Microsoft Windows Operating System to mean "data". In video the DAT extension is usually used to store MPEG-1 encoded video on VCD or SVCD discs (the predecessors of DVD).
Here you can find DAT converter apps and learn how to burn DAT to DVD, convert DAT to AVI, DAT to DivX, DAT to MP4, DAT to FLV, DAT 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.