According to Ofcom research: 80% of subjects utilized closed captions for reasons other than hearing loss, and that closed captions bring benefit to more than just those who require them for accessibility. For the movies in iTunes store, people would find that preserving subtitles as well as closed caption are quite valuable after iTunes video conversion.
Here we will take Tune4mac iTunes Video Converter Platinum as an example to introduce how to convert iTunes movies or TV shows with closed caption and all subtitles easily.
Instroduction: Tune4Mac iTunes Video Converter Platinum is a professional iTunes M4V Video Converter that is able to remove DRM from both iTunes purchased and rental videos, and convert them to various of plain media formats with lossless quality in 20x conversion soeed. Since the last update, it supports retain all subtitles and audio tracks after conversion. Now, Tune4mac is the most competitive DRM media converter in the market.
Tips: Before the iTunes M4V rentals and purchases conversion, please freely download iTunes Movie Subtitles Retainer according to your computer OS (Windows / Mac).
When you set output to "Same as Source for MP4/MOV", all audio tracks, subtitles and 5.1 audio will be preserved. Conversion speed will be 20X faster than usual.
Just few minutes, you can get the converted MP4/MOV videos with subtitles when watching via media player.
Source: Tune4mac M4V Subtitles Retainer