Caption-like black text box on iPad

[smike]

I know how to make subtitles for my iPad, but I want it to look similar to closed captioning, complete with a black text box. I combined the text with the m4v using mp4box, then I went into Quicktime Pro and selected a all black image for a mask. It looks like it doesn't work, no box appears in iTunes at all either, it's just the text.

Is there a way to do this? I don't like the transparent look of the box and I really don't want to spend a whole bunch of money on a Mac just to do closed captions.

[DB83]

Do not think you can do it with burnt in subs unless you create the mask at the same time (then the mask is fixed and potentially looks un-tidy)

With external subs you can configure a player such as vlc to do what you want. (the mask then changes as the subs length changes)

Maybe Quicktime Pro also works like that. But I not not use it.

[smike]

Quicktime Pro does do it via Text Track, but there is no option to turn it on or off, it's burned in by default, unless there is something I'm missing.

I thought the text descriptors of "Keyed Text" or "Do Not Display" would help in some way but not quite.