I've got a bunch of movies avi/mkv etc. with both separate subtitles (mostly srt and idx/sub) but also, in the case of the mkv files, embedded in the video file. I like to watch these movies with English subtitles but I get very distracted by the closed captioning so I'm wondering if there's a subtitle editor out there that can strip out the closed captions, both from separate subtitle files and embedded subtitles.
The MKV format allows for multiple subtitle streams, include Unicode for closed captioning. You can use the mkvtoolnix to extract from that file just the audio/video/subtitle streams that you want. The command-line structure is somewhat complicated so you'll need to look it up.
However, if you have subtitles burned into the picture, you cannot get rid of those because they are actually part of the video. If you're seeing subtitles on by default and cannot turn them off through the Subtitle menu, then you have burned in subtitles.
The SRT and SUB files ARE the subtitles if you're using AVI files, so all you need to do is delete the files and the subtitles won't appear.
All good video players will also have an option to Enable/Disable subtitles whether they are embedded in the MKV container or as external SRT/SUB files. I recommend Media Player Classic.
I thought I had tried most subtitle editors, but apparently I missed a fantastic one called Subtitle Edit. There's a command specifically to "Remove text for hearing impaired".