What Is A Sub File?

I recently downloaded a file with the extension .sub - regardless what programs I tried I could not open it. Any ideas? :(

I think its subtitles. You add those to movies.

No it's not a subtitle. It's a CD image. You need a cue file that corresponds to the sub file and you burn it with nero using the burn image option in the nero file/ menu

Well, it is supposed to be a program, not a movie!

Who said any thing about a CD having to be a movie ?

Is there a chance to extract the file if you don't have the cue file?

WinIso will do the job

Try CloneCD.

CloneCD uses .img and .sub files for a CD image.

So you might need to download the .img file too.

ok if its a image file, then get the /cue file for it. then using nero to burn it

Look in my sig, I have created a complete walthrough for how to use these kinds of files. In order to burn it with the program that is intended to burn those you will need the .ccd, and the .img - depending on you may me able to get awaywithout the .img (very rarley though) usually these types of files come in a zipped file with all the needed parts.

Paul is correct. A .sub file is most likely part of a CloneCD image set. To burn it you need the other
files of that set. There's a .ccd, an .img. and a .sub.

just to add a little note the .ccd file is just like a .cue - meaning these are easily created. I am not sure on the exact way to do it but there are instructions in the help menu of clone CD.