I presume these are VCD or SVCD images.
If so, Toast is not a good choice, in my experience. You want GNU VCDTools. You can then process the BIN files in such a way that Toast can handle them and be able to burn onto CD (VCD/SVCD).
Sadly, its a multi step process, but results in DVD playable CD vide disks.
You can get the GNU VCD Tools for free - do a web search for it.
When you burn with toast you will have 3 or 4 files, and you use the CDROM XA option and burn these 4 MPG files and there you have it.
If its a data image then I have yet to find a reliable means to convert to a format the Mac can see. Stuffit can ATTEMPT but it always errors out near 99%.