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The DAT file format, we mostly used as VCD video files, .DAT is usually used as the file extension by Video CD, just as MPEG-1 is used for video compression. DAT files are data files, usually comma delimited, that contain data in ASCII format.
And MPlayer is a nice choice to play the VCD .DAT file: MPlayer prints detailed information about the DAT file, and plays the content nicely.
The real audio and video items are stored as DAT files in the MPEGAV directory on the VCD. You can actually copy a DAT file from a VCD and store it on your computer hard disk, and play it later.
what you need is just a DAT video to DVD Converter for Mac, you can go to see the deatails and download it for free.
Step 1. Launch DAT to DVD Converter for Mac
Click the "Add" to import the DAT file which you want to convert to DVD.
If you want to make some editing before Converting DAT to DVD on Mac, there are three functions providing for you: Crop , Effec or Trim. Just edit it as you like.

Step 2: Edit DVD Menu
This DAT video to DVD Creator for Mac allows you to create your own DVD menu with various built-in resources. You can get more information about editing DVD menu on Mac by another cool guide: How to Create DVD Menu on Mac
Step 3: Burn DAT Files
Before burning your DVD on Mac, you can select your DVD type and the output quality at the bottom of the main interface. The recoding time of the DVD is different when you choose different formats or quality.
After you choose the correct DVD disk and the suitable video quality, you can click the "Burn" button to start burn your DAT file to DVD.
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