converting video files

[pbr420]

so im kinda new to the mac thing, and i used to be able to this one my pc. but im having a hard time getting this done. so i have some video files that are mp4,mkv. and when i try to burn these movies onto a dvd using toast titanium it says one of two things
1.file not supported
2.missing code.
is there a way to convert these files so i can burn them with toast or should i just get a new burning program.
it will let me burn avi,and mp4 sometimes. what should i do

thanks

 

[simsaladimbamba]

You could try Burn before trying to transcode the videos.
If that does not work, you can try MPEG Streamclip to "Export to QuickTime" (CMD+E) using Apple Intermediate Codec (AIC) as Compressor and Uncompressed as Sound, but the resulting file will be big, but as AIC is an editing codec, the transcoding will not take as long as other, more compressive codecs and the image quality will not deteriorate.
You can then use the resulting .mov file in Toast or Burn.

 

[AcesHigh87]

You should be able to convert the file within toast to a format designed for DVD.